Adj: Variation of "retarded" and in no way intended to make fun of actually retarded people. Insult to people who should be able to function normally but just screw it up all the time, usually to the amusement of those around.
In noun form: "rere" or "tata."
What a sillyass! That lanky white man by the trashcans was being retata and trying to rap.
The day between Wednesday (see also: wasted wednesday) and Friday (see also: fucked-up friday) when many lesbians seek out two well-trained, willing, and voluptuous prostitutes named Muffin and Trixie.
Random man: Are those two lovely ladies on the streetcorner lesbians?
Random man's wife: No, they're only 1/7 lesbian. And since it's a lesbian Thursday, I'm about to go have a very good time with them! ; )