To present oneself in the most attractive (and perhaps most ostentatious) possible manner. Typically entails driving a convertible, sporting jewelry, wearing fashionable clothing, and properly grooming one's self (i.e. one may go to such an extreme as to practice a rarely witnessed form of dental hygiene).
'Check this out:
The sun went down when i hit Slausson,
On my way to the strip, now I'm just flossin.
A sexual practice in which the female in the relationship flosses her front tooth with her boyfriends/husbands pubic hair after oral sex. Past tense: flossed
Joe: dude so my girl gave me some head last night and when she was done she pulled out a pube and started flossin!
Shmo: What that's crazy your girl flossed with you last night?!
(Pretty girls walk by)
Shmo: Hey ladies, have you flossed lately?
referring to a girl that's ready for sex. can be used derogatorily by another girl or eagerly by a boy. either way, you're basically a whore (i'm not saying it's a bad thing).