When the ass is right, but the legs are weak or underdeveloped.
She's got natural curves, but some whack knees. She looks like a marshmallow with a toothpick stuck through it.
Australian slang, Ready to begin a task. Also used in completion of a task.
“Did you get that toilet fixed mate? I’m busting! “
“Whack bang and bingo mate! She’s ready to go”
off whack is a term used to describe something or someone that is weird or crazy
“this movie is so off whack”
“we are so off whack today”
To have sex a.k.a. Knocking boots
‘Ayo we finna whack wellies tonight or what?’
The act of masturbating so hard that you throw up.
Guy1: I was whackin it so hard last night i puked.
Guy 2: oh you whack and yacked?
The level of high yo mama got off my weed
On the way to a sesh “Bro I’m tryn to WHACKED tonight”