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1.
An illegal contraction of "fucking" and the already colloquial "dayum". Used for further emphasis when there's no other word to express how epically shocking something/someone was in an event.
*Person A enters with crutches and a bloody nose with his neck twisted 180 degrees.*

Person B: Gawd fayum! You got fucked up, nigguh...

Person A: I know...FML.

"Be Like Skizzo."

fayum
by Lyrs April 06, 2011