To jump and/or rob. Comes from the Vietnam War era when American soldiers used to get rolled from behind when they were distracted. (When GI JOE would be doin a hooker and get hit from behind by a club).
Verb-T,I
Originally from the BrazilianJiu-Jitsu slang "rolar", to engage in BJJ practice, to engage in any kind of grappling martial art, specially BJJ.
Royce had been rolling for some minutes when he got caught in a clockchoke and was put to sleep.