Masturbating while in heavy traffic because you are so bored there is nothing else to do.
Guy1: Man were you in that traffic jam yesterday?
Guy2: Ya, that was horrible. I was so bored I had myself a traffic smack.
What you look like after a hard night on the piss.
fuck bitch u look like a smacked arse.
When a tiny dick hits your ass
Backy: yoooo I just got bean smacked
Janitor: wack bro
A person whom smacks another individual that feels the need to smile like a duck (duck face) in half of their pictures.
Don't make me quack smack your ferocious duck face!
When you unknowingly smoke weed that has been laced with a stronger drug, leading you to freak out by how hard you are tripping.
I thought I was just gonna chill out, smoke a J and watch SpongeBob but I got piff-smacked and ended up crying in the fetal position on the floor.
To get SUPERRR high off Heroin
Dude, fuck the world... I wanna smack the sun tonight!!!
The act of masturbating, much like beating the meat, spanking the monkey, choking the chicken, etc. Made famous by Nostalgia Critic, a popular film reviewer
Nostalgia Critic: "as Peewee Herman Hey kids, crack is wack, but wax the smack. So whack off everyday!!"