When two woman scissor with a vibrator in the middle and both orgasm aggressively
"Tonight I crave a dirty fifi"
"I think I'm gonna ask my gf for a dirty fifi"
A blunt/spliff with only a few draws remaining.
Originated from, and commonly used in the South coast of the UK
Guy 1: Hey man, you want fi's?
Recommended response: Sure man, waste not want not =
Foolish response: Nah man, dirty fifi's are gash =\
2👍 2👎