Kimbo Slice -- I'M GONNA FIGHT BUTTERBEAN ... Hopefully

Kimbo Slice -- the real-life street fighter who became a cyber-punching superstar -- tells TMZ ... he's gearing up for another brawl in November ... and he's gunning for BUTTERBEAN.

39-year-old Slice was in Calabasas on Tuesday when we asked about his boxing career (he's undefeated as a pro, btw) and that's when Kimbo told us he's got his sights set on the King of the Four Rounder.

"Hopefully, if Butterbean plays his cards right we'll go at it," Slice told us ... "I like beans."

Butterbean is 47-years-old now ... and hasn't won a sanctioned boxing match since 2007 ... but he's still hungry for a fight.

No word on what's holding up the match -- but until they get the deal signed, here's a clip of Butterbean beating up Johnny Knoxville in a shopping mall ...