Whackstack 

When "losing it" or feeling as though one is about to "explode". Gained popularity via the constant "whackstacking" of subpar vocalists throughout the hardcore scene.

"MAN! Blockhead is about to whackstack the shit outta this mother fucker!"

Whackstack by Luke Perry March 29, 2007

whacksock 

a cotton sock made to cover the human penis for warmth and or pleasure.

After an episode of Baywatch, I slipped on a whacksock and came to a conclusion.

whacksock by Sockmaster January 12, 2009

Whack Stack

A person's collection of pornography. Stack refers to a time when all porn was in print and thus stacked in a cubbyhole in the porn dungeon, equipped with infrared motion sensors, high resolution cameras, lava pits, and crocodile infested waters.

My roommate found my whack stack while I was out Saturday. Talk about awkward.

Whack Stack by Myriadofpersonalities September 15, 2010

Whacktacular 

(noun)-To kill 4 or more people with a Plasma Sword in Halo 2 in rapid succession, can also be accomplished with a Brute Shot or any other weapon, but it is much more difficult.

Performing a whacktacular proves you are a top of the line player

Holy hell, I just overboarded every single one of those bitches with my sword, what a whacktacular!

Whacktacular by Brian H November 11, 2004

whackispack 

slap the salami or spank the monkey

That dude went to whackispack and never came back.

whackispack by npr listener July 28, 2008

whackshack 

1.
Comes from the word "whack"
"whackshack" Is a term used to define someone unconventional almost to an insane degree. The kind of person that will jump off a 3 storey building into a bush to impress people can be refferred to as such.

2.
Also can mean the house or hang out area for people who are whack

1.
Person- Did you see jonathon run cross that busy street last night?

Other person- Yeah, he's a total whackshack.

2.
Come on boys, let's just leave them to go back to their whackshack

whackshack by LastDigit June 24, 2009

whacktacular 

adj. - describing any person, place or thing contributing to pleasurable and vigorous masturbatory experience.

I had a whacktacular weekend perusing volumes of electronic and paperback pornography!

whacktacular by Tom Zappacosta September 27, 2003