To disagree with or to claim someone is full of shit and not worth listening to.
A derivative of the original "mmmbeah" as if one was thinking about what someone talking is saying, "hmmm..." and then pronouncing it false "yeah, whatever"
monkey1: "I think the last Kenny G album was his dopest yet and Eminem has so much talent, he was great in 8 Mile"
monkey2: "beah"
6👍 10👎