a term, much like "bitchassness," used to describe individuals or acts that are shady, back-stabbing and/or dishonest; can also be used to describe acts of questionable fidelity, such as 'creepin'' with your friend's girl
"Did you see Darius chillin' wit Chinika the other day?"
"Yeah, bruh, that's fucked up. Chinika is Darrell's girl."
"See, bruh, that's the kinda fuckassery I can't stand!"
A state of mind during intercourse where a person thinks they possess unsurpassed sexual expertise and pleasure giving ability that they forget who they are with and call out their own name.
Derives from the term "Fuck knows", which is another form of "God knows".
Used to describe someone who has led a sheltered life or is blissfully unaware of current events.