Smash stack 

Closely linked to the word "post material", smash stack refers to two or more hot girls in the same areah or room.

Smash meaning having sex with a chick and stack meaning more than one

Guy #1- You see that post material in the corner?
Guy #2- Yeah n she bought her friends too, complete SMASH STACK!

Smash stack by IST Slang 2012 September 2, 2009

ball sack smash

1)the act of spinning really hard naked aim to your partners face and hit your partner in the face with your testicles

2)if you are a female you have to punch or kick your partner right in the ball sack while he is cuming or ball sack smashinig you

my ball ball sack smash in lily's face left a mark

ball sack smash by Raphael M, Cam J ,Doug M April 2, 2008

sack slash

A suprise attack when the attaker chops the ballsack in half by useing an agressive underhand uppercut. Ushally splitting the sack as the two nuts are realased from there chamber.

Jason is now using the girls bathroom due to a perfectly excicuted sack slash.

sack slash by Geoff Valiante February 22, 2008

smashstick 

A man who will let any bicth sit on his dick.

"I'm trying to fuck him, you think hes down?"
"Definitely! But he's a smashstick, you'll probably get the clap."

smashstick by capemay September 5, 2011