This occurs when you have an altercation with someone who’s extremely stupid.
I had been told Millie wasn’t that bright. But I didn’t have my first dumb-in with her until last week when she tried to open a checking account without proper funds.
by Victoria Skyles July 08, 2009
1 more definition
Chillen, coolin, relaxin, laxin, hanging out, melting.
I was dumbin on the couch all day. I didn't even feel like gettin up to piss!
by FreshPrince603 February 22, 2012