Wymmb

Acronym for "What you mean my boy"

To be said when you are unsure of what another person is referring too or talking about.

P1: So then, we go back to her place... She took her panties off, I looked at 'em.. they was white. But they had some brown spots in 'em. So I said, "what that is?" She looked at me, she said, "I ain't even gon cap..."
P2: oh hell nah... That's disgusting.. so, how'd you get back home? You had to Uber?

P1: wymmb?
P2: oh no.... (Disappointed)
Both: gots to see it through