Our Doyley Freud (Oi, Oi, Oi Redone)

This is some effort man.
I think i may have worked out the meaning

1. Conquering duality / and (the) contrary results(?) (assuming D'oyly was implied).

2. Potentially embellishing identity and connections (2nd definition of groin)

3/4. Giving in to temptation and it becoming mundane also unhealthy.

5/6. group think/ mob mentality and/or  having no real choice but to comply.

7/8. Over confidence/insistence with poorly prepared arguments only annoys.

9/10. (Depends) the crushing implications trying to comprehend the universe (best guess) and when the mask is off all is revealed.

11/12. Celebrating Germanic roots, 11) champagne and a reason. 12) (if a typo a Germanic place and corduroy made me think of jute and jute has the same connotation (thats your name).

If way off let me know but this was fun

Very interesting interpretation.  You did seem to hit on the basic framework, as this poem is probably pretty difficult to decipher.  It can get confusing to where/when I mean a metaphor or simply an idea.  
   
A lot of the intention was to show sexual immorality.  I used various metaphors to perhaps exasperate the theme a bit and take it into verse and direction the entire course of this poem.  With the given vocabulary, it was quite difficult, so some of the terminology may seem to have more literal meaning that it actually does.  
   
It's kind of like a coming to age thing, where you notice a lot of the sexual nature in people, and the horsing around of it.  In the poem is a battle through this, through all of the stanzas.  The "fruit" it produces is rotten and of no use.  
   
Lines 1/2 - "Doyley Freud" was like the "doll parts" of sexual allusion in doublemindedness, pertaining to awkward and inappropriate immorality that's supposed to make reference to someone as a sex pun, yet the person kind of hides behind the physical and literal meaning, and are afraid to take credit for referring to someone to trick them or whatever.  By "Freud", I guess you could mean "libido" and the like.  This represents a sort of "voodoo" in the supposed "modern understanding" of Psychology that literally excuses behavior such as sexual immorality as "normal".  The royal Noid part is like the govt and society playing games and making this a thing that sells.  
   
Lines 3/4 - Using these games to fill oneself with pride is what "destroys with cloy", within the context of practicing the "host" of such sexual immorality.  Putting yourself above others or in the "spotlight" is the hoisted loins that are poisoned poise.  
   
Lines 5/6 - The whole draw and excitement of the play-acting (flamboyance ploys as voices roil) can lead to conflict, or group mentality of ganging up on someone.  Since this isn't peaceable conduct, it is "employing noise devoid of choice."  
   
Lines 7/8 - Simply, like you put, the gang mentality of such behavior, like if you can picture a bar scene, heh.  
   
Lines 9/10 - Putting into context, the spread of empires throughout history have always had shameful perversion, for the most part.  "Deployment Troy ahoy will oink", means the spread of this in empires is hoggish or piggish.  "To loiter", meaning, to be anywhere at any time an empire has arisen, "to loiter goyle annoyance doinks" means being around anywhere in these cultures, it has to have been an endurance that annoyed in people who decided not to be perverts, and its "doinks" are a failure to make any point to such people.  Not my best line, heh.  
   
Lines 11/12 - Showing the growth of an empire through the metaphor of farming crops.  Appointing Lloyd lest Poy for choy is self-explanatory.  With supposed goodness and rightfulness, the moistened soil leads to a synthetic product.  By the word "Soylent", I mean "synthetic" and "replaced" foods, such as soy.  It's simply like saying there's a natural course of things corrupted by these spreading behaviors in societies.  It produces rotten fruit.  
   
Lines 13/14 - "A Neumann (new man, as well as the literal mathematician) boils in toying Hoyle (the rules of games and card games in medieval times).  I use this as a metaphor as if there are "rules" broken (in the Hoyle reference) with sexual immorality prevalent in society, that result in "boiling" or "anger" from perhaps an overseer or source of authority in a culture, as well as a new man (Neumann), because of the "synthetic product" of "ointments" or any other goods that lead to "avoidance coy" from being "spoiled", or "no good."  Producing a synthetic product on a spiritual scale in this way of life is what I meant to show through the metaphor of farming, and how the way of life has corrupted the land, and it produces decay.  
   
Lines 15/16 - Kind of like words of encouragement.  "Anointing oil" is used by ministers to heal in scripture, and the voyage joy is the way of life that's needed in changing.  "Rejoin your Deutch and corduroy" is like saying keep your clothes on by what you think and say and act upon, in language or conduct (Deutch), or to be dressed confidently and clean, in your way of life.  
   
Anyway, I hope this makes sense.  Obviously, I could've given more depth, because there is a lot open to interpretation with some of the words, but this should suffice as an overview.

Ok i was kind of off.
I thought i might have let my perspective have too much influence on the interpretation.
Thank you for the detailed breakdown, that certainly makes more sense and sounds more like something you would write having the proper interpretation.
It was still fun trying to figure it out.

Yeah, like I said, the terminology was difficult to understand as to whether it was literal, metaphorical, or specifically definitive.  Difficult group of words to work with, which is why this is just simply a vocab exercise, heh.

Brilliantly written, Brother. Great rhyming and flow. Appreciate you.

DL  

Thanks for checking it out.  Your support is always greatly appreciated.  This one was a bit of a definitive doozy, but yeah, the experiment and experience challenged me, and I grew from it.  That's art for you - good or bad.  Anyway, take care!