They might not always get along, but UFC prez Dana White says he's GLAD Rampage Jackson punked an alleged ass-grabber last night ... and the dude's lucky Rampage didn't destroy him.
We broke the story, Rampage threatened to put a clubgoer in the hospital after the guy allegedly got a little too butt-squeezy with the MMA fighter's GF at a Hollywood nightclub.
Dana skyped into "TMZ Sports" today and told us ... he thinks ANYONE who violates a female deserves a good old fashioned ass kicking.
"If you're gonna go around and be a scumbag and touch people's asses that aren't your girlfriend ... you better make sure it's not Rampage's."
Dana also dropped all sorts of GREAT info about the big fights at UFC 168 on Saturday ... check out the clip.