1. Slow to learn or understand; lacking intellectual acuity. 2. Dull, uninteresting or appealing to one; gay.
1. "Yo dis bish be actuin' dumn foo."
"Wear a condom? What are you dumn or sumin'?"
2. "Reading and writing? Psh, dat shit be faakin' dumn mang."
"Yeah, if I was dumn I'd let yo ass go free for poppin' a cap in this hea boy's ass. But no, this nigga be blood. Bet ch'ya dumn ass didn't know that."