Snotklap 

A phrase used in Afrikaans in South Africa to explain to someone how hard you will slap them in the face. Used commonly by drunk men or angry old tannies (aunties)

Jan: Pieter you must stop bothering me now man or I will klap you that your snot spray over there!

Pieter: A snotklap doesn't scare me bru, come at me!

Snotklap by BigBullManMilkers January 21, 2023

Snotklap 

To administer a hard open-handed slap sufficient that it causes mucus that was formerly inside the recipient to come out rapidly.

That guy's looking for a straight Snotklap

Snotklap by Snappie October 3, 2008