An adverb, meaning "a lot" but it can be used in other contexts aswell. Cannot really describe it well but check out the examples and you should get it.
I'm sweating like a beaver.
My hand is itching like a beaver.
I've been running like a beaver.
16π 8π
1) A druggie/friend that wants some money.
2) Anyone asking you for shit you don't have OR don't want to give them.
Druggie - Hey brah you got some cash money I can borrow juss fo a min?
You - Man You actin' like a damn Beava (Beaver)!!
Itβs means go away and fuck off with a beaver butt plug
Selena make like a beaver and fuck off