Whack It 

To tug on one's penis. Often called "jacking off." Very, very pleasurable.

After a hard day of work, I like to whack it because it feels really good.

Whack It by Tanzeel Ahmed July 16, 2008

whack it 

male masturbation

why don't you go wack it

whack it by Dawn June 15, 2002

Whack It and Pack It 

(v) To masturabte and then fall asleep

"Yo dawg, I'm down to go see Toy Story 3 with you tomorrow but right now I'm horny and tired, so I'm going to whack it and pack it."

"After such a tiring day, I really need to just whack it and pack it, tonight".

Whack It and Pack It by MistaDietSoda July 26, 2010

Whack it Off 

Similar to "Walk it off."

An appropriate response when conversing with sexually frustrated individuals who have no future mating prospects.

James: "Dayum! I'm horny and no girl will sleep with me. Not even Gretta, the unibrow girl."
Morty: "Whack it off, James... Just whack it off."

Whack it Off by nevarine July 5, 2011

whack it up 

Slang for dividing up property (usually cash) amongst multiple parties that may be entitled to it.

Sara and Mindy both thought they were entitled to an annual Christmas gift of $200 that was sent by a client they both worked on over the past year. Tim, their boss, broke up the cat fight and suggested that they just whack it up amongst themselves.

whack it up by phess01 November 3, 2006

whack it in 

The act of completing a task with no forethought or planning what so ever.

Normally in one tenth of the time it should take to do.

Person 1: "I need a nuclear power station safety system for tomorrow".

Person 2: "No problem, i'll 'whack it in' this afternoon".

whack it in by sup my lo November 25, 2004

whack it week

The female gives the male hand jobs during her menstrual cycle.

Aunt Flo is in town looks like it’s whack it week

whack it week by Blacksheep1721 January 5, 2018