A thug monkey is someone who thinks they be all ganstaa but really they are as dumb as monkeys.
You be seeing that thug monkey?
yeah man, his pants be hanging man.
so dumbb braa
(noun) a person straight from the ghetto, with baggy jeans, tall tees, doo rags and gats, tattoos and gold teeth, and especially strong ebonic accents.
synonyms: hood rat and nigga
That ghetto ass thug monkey just pulled up in his shitty Cadillac and robbed me.