Another way of saying to get things done. Just do it, but so much quicker and so much better. Once you commit to smacking it, you have to follow through. "Smack it"- Do it. "Let's smack this"- Let's do this. Made famous through Casey Neistat's video, "just SMACK IT."
"Just smack it."-Dan "Let's smack this." -Dan "C'mon dude let's smack that."-Dan "Should we just smack that?"- Dan
to deliberately not do something/ to avoid something/ the act of ditching a person or thing.
_______
variations: sack it/him/her off, sacking off.
_______
A: wats good? wanna come cotch at mine?
B: cant, got an essay to do and some reading aswell, long.
A: sack it off - we'll smoke a joint and play pro instead.
________
A: Alex knew we were leaving at 7 where the fuck is he?