To complain and bitch in excess at the same time, for long periods of time, about everything. Usually with your friend at a bar about your girlfriend/boyfriend being an ass. You may or may not be drunk at the time.
LoRes: Dammit... that whore Jill told me we were through. I just bought her a $120 dinner, and spent the whole day picking out a suite, and I helped her AND her friends move and..---
Scoots: What are you comblitching about, LoRes? Didn't you pwn her?
LoRes: (sigh) Yeah...