I'll Slap You Into Next Week 

To slap someone so hard that they fly into the next week. One might ask how this is possible and it is simple. You would have to smack someone so hard that their entire body would accelerate past the speed of light. Consequently, they would be traveling in time, assumably into the future. As a result, they would be slapped into next week!

Coco: >>;; I hate black people.
K': I'll slap you into next week if you don't stfu.

I'll Slap You Into Next Week by Iconoklastic~ April 4, 2010

juice slap 

The act of physically slapping another woman across the face with self-produced vaginal secretions, as defining proof of female copulation fitness.

The bitch called me out on bein' old and dried up; so I grabbed me a handful from down there and juice slapped the ho...

juice slap by YAWA April 10, 2017

Slap Ass Month 

The month of October where you can slap any guy or girls ass without getting in trouble or maybe you will but it is mainly for high schoolers and middle schoolers so hide yo ass

Hey

Hey
*slaps ass*
Why did you slap my ass its slap ass month

Slap Ass Month by He is dorky October 2, 2019

banana slap

A half peeled banana must be shoved into the targets face where the fruit must be smeared as quickly as possible. Then you must retract and once again swing the banana peel toward the face to achieve proper contact and satisfying snap sound of the peel against the flesh. It is important to note that this is not a bully's activity; the target should never be victimized, but deserving of a banana slap. it is an underdogs activity. Most often perpetrated by the victim to a bully. The target must be fully deserving of the insult. Then, like Braveheart you must scream "banana slap!"

Target: Give me your lunch money.

Hero: I can't do that, but I can give you this... ...Banana slap!

blurn

Google blurn or banana slap for video tutorials or more examples.

banana slap by Ballistic2010 December 15, 2010

Slap box 

To fight but slap instead of punching

You wanna slap box in the bathroom? Say less

Slap box by Papi.myah November 5, 2019

slap mah fro 

Used when you didn't realize something was true.

Did you know birds fly? Well slap mah fro, I didn't realize that.

slap mah fro by Jamie Morgan September 16, 2005

Hitch Slap 

The process of having common sense knocked into you by Christopher Hitchens

Person 1: Dude did you see that debate between Christopher Hitchens and Pat Robertson on YouTube?

Person 2: Ye Dude and at 3:45 Pat totally got Hitch Slapped!

Hitch Slap by Behemut April 25, 2010