What is Smack It?
1.
To masturbate. A synonym of
Brandon: "Dude, want to head over to Pat O'Briens and catch the Sox game?"
Mac: "Uh...maybe later. Your sister just put up a new Facebook album full of spring break bikini pics, and she's looking pretty damn good. I'm just gonna hang out here and smack it to that a few times."
Brandon: "What???
Oh no you didn't ! The only smacking that's going to happen is me smacking you up!"
See
2.
similar to fuck it, but without the swearing required. used to describe something you don't want to do, or something bad that has happened. origin; New Zealand Navy
Pers 1 "hey dude, want to come for a feed tomorrow?"
Pers 2 "um yeah, let mething about it. Smack It"
Pers 1 "hey the boss wants to see you"
Pers 2 "argh, Smack It!"
See