Brace yourselves for a stunner, celeb gossip fans - the guy who recently knocked Suge Knight the f*%k out is not exactly a law abiding fella.

The LAPD nabbed Greg Smith late Sunday night on an outstanding warrant - seems Greg forgot a court date. You know, one of his prior ones.

To make matters worse, when cops approached him, Greg Smith took off! So the thug has also been booked for resisting arrest, as well.

Maybe it was a deliberate move on Greg Smith's part to get busted.

If he's in jail, Suge Knight (real name Marion Knight) will have a harder time exacting revenge, after all. And you know it's coming. Ask Vanilla Ice.