shlacking

a huge smack to a certain object.

Dude I gave your mom's ass a good shlacking last night.

by mattyc April 4, 2003

stacking

when one girl gets on top another and u have sex with both of them.

i was stacking jenny and tiffany last night!!! it was great!!!

by rok_star May 20, 2008

sacking my whacker

Just to jack off, plain and simple.

*Fap Fap Fap* Oh shit ma! Go away! I'm sacking my whacker in here!

by TexasColeSlawMassacre August 22, 2007

smacking the glove

Masturbation while wearing a condom.

Dude 1: "I am so bored at work today. Cover for me, I'll be smacking the glove in the restroom."
Dude 2: "Will do my man. Enjoy!"

by Wizards Sleeve July 6, 2007

Sacking the Quarterback

Jerking off whilst looking in the mirror.

"Bobby was found Sacking the Quarterback in the boys locker room."

"I found that mother fucker Sacking the Quarterback in my parents bedroom."

by Timmy McGuire April 6, 2014

ninja-sacking

an activity taking place amongst highschoolers, in which you...

1. steal someone's backpack while they leave it unattended.
2. remove its contents.
3. turn the sack entirely inside-out.
4. replace the items.
5. re-zip it.
when the owner of the backpack returns, they will most likely be very irritated with you. but they will get over it.

what are you doing to his backpack?" - "we're ninja-sacking it!

by ashleyvennum December 7, 2010

Smacking the Panda

A slang masturbating

Guy 1: Dude i just saw sami Smacking the panda.

Guy 2: Thats amazing.

by Gentalmensmiley June 20, 2011