Which U

First time l tried entering a contest Decided on the letter “U” Though being a Newbie I was unsure what to do A little unclear And somewhat in doubt Whether it is the alphabet or “U” words Or Me (U) I write about Well, “U” in the alphabet is letter twenty one In between T and V at the very end A tight gang called “The Vowels” Are “U’s” best friends Ululate ,unasinous ,ucalegon “U” words just to state a few What the dickens they mean I actually haven’t a clue Lastly, me in this “U” poem Well , I am not that interesting it’s true To be quite honest I’d rather talk about “U”