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?