Abbreviation for "for straight for shizzie" AKA "for straight for
shizzle."
This is commonly used as a
fancy way to say 'hell
yea' or 'no doubt.' Basically, acknowledging a comment while also adding a sense of excitement or anticipation.
kid1--> what we doin' tonight?
kid2--> We
gonna go to the party tonight, get crunk, and
nail us some hotties.
kid1--> fsfs