Popular in Cambodia. They normally all dance around a fire with their ‘karls’ out. They then procreed to whack each other until the last one standing wins. Now being introduced into Yorkshire and Lincolnshire.
Did you see those guys Karl Whacking yesterday?

Oh yes it sounds very fun.
by Thekarldoddger March 7, 2019
Get the Karl Whacking mug.
In the Hip Hop scene a Whack MC is a disrespected MC.
Kollegah is a Whack MC.
by rubig April 30, 2018
Get the Whack MC mug.
When someone does something clearly dangerous and fucking stupid and then suffers the obvious consequences of their actions. Especially when that person complains about it after.
1. Kit was the world's best "free climber" - scaling deadly precipices with no ropes or safety equipment. Sadly Kit is no longer with us. Fuckin right whack Kittybang!!!!!!

2. Watch this youtube video of a guy getting his finger bitten off after he sticks his finger in a crocodile's chomper! "Uh oh, this sounds like a right whack".
by Chief Charles Moose June 7, 2011
Get the Right Whack mug.
Grab your favourite hydro flask and smack a girl in the head
Whack a vsco girl with a hydro flask or whip em with a scrunchie and give em what they deserve
by Dr.Belhabinscut October 20, 2019
Get the Whack a vsco mug.
When a man is masturbating while asleep.
Example 1

Friends Wife - "Can I ask you a personal question regarding your friend?"
Husbands Friend - "Shoot!"
Friends Wife - "I caught my husband masturbating while he was asleep and I could not wake him up."
Husbands Friend - "Was he making Gorilla sounds?"
Friends Wife - "YES! YES HE WAS!
Husband friend - "What you witnessed was an art form known as SLEEP WHACKING, sleep whacking is multi-tasking at it's best."

Example 2
My buddy was telling me about his marital affair the other night. It involved him sleep whacking and it put him in the doghouse.
by deucebiggss1 March 1, 2014
Get the Sleep Whacking mug.
A whack to a guy’s sack
Mike- Hey Tyler.
Tyler- Yeah?
Mike- SACK WHACK!!
Tyler- OOOHHHHH!!!!!
Mike- HAHAHAHAHA
Tyler- Oh you think that’s funny, huh? DOUBLE SACK WHACK!!!
Mike- (High pitched groan in pain)
James- SACK WHACK (to Mike) AND DOUBLE SACK WHACK (to Tyler)
Tyler and Mike- I wanna die!!!
by ShamanViking September 9, 2020
Get the Sack whack mug.
Whack A Hoe Wednesday is pretty explainable. Every Wednesday you go up to a hoe and whack them. Whack A Hoe Wednesday is a very big National Day!!!
Jenah: Guess what today is Jennifer???
Jennifer: What???
Jenah: Today is Whack A Hoe Wednesday!!!!
Jennifer: WOAH THAT IS SUPER COOL!!!!!
by JMSTRADTNER October 15, 2019
Get the Whack A Hoe Wednesday mug.