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The derogatory but funny term "rusg" is an acronym for "are you so gay"; it can be used as a statement or a question, but is usually followed by a question mark.

"Rusg" derived from a combination of "are you gay?" and "you're so gay", making it even more of a rhetorical question.
Patrick: dude my ass is soooo sore.
Patrick: BOOOOOOY! i was hittin' 500000000 pound squats at the gym. abbebebebbebebeb. when was the last time you touched weights?
Joey: man, i'm just not comfortable working out around other men.
Patrick: ...ehm... rusg?
by Sheeks69 December 09, 2010