used to fuck(, when naming an ex- booty call, girl/boy friend, fuck buddy, one night stand, ect.). used especially with hispanics/latinos, because we don't use past tense, bitches.
pedro: you see that girl ova there, homes? *points to random sexy chula*

jose: yeah, what about her?

pedro: that's my usefuk.

jose: July! JULYER! that's my cousin maria!

*girl turns around*

jose: hey butterface! wassup?
by ♠Kitty♠ March 22, 2009
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The usefukness jeapordises the usefulness by a clear margin.
by Hercolena Oliver January 12, 2010
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A fortuitous typo that elevates the meaning of useful into something better. Something more:

Something as "useful as fuck".
Rob: Yeah, it is really usefuk
Rob: Useful
Rob: (or useful as fuck)
Dust: Think you just made a new word
by dustdub August 25, 2016
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