Ok.... Similar to donkey punch, but works a little differently:

(wôlrs, wl- pnch)
tr.v. walrus punched, walrus punch·ing, walrus punch·es

A sharp blow of the fist administered by a man to a woman's stomach immediately after getting his cock sucked off after she tastes his man juice, forcing the cum out the womans nostrils, giving her the appearance of adorning walrus tusks.

When you eat dirt for the first time and leave your family to build a shack in the woods

when a slut is suckin yo dick, and starts to swallow your load, you karate chop her throat and the jizz comes out of her nose like walrus tusks

when some chick is sucking your dick, and right and right when you bust you punch her in the stomach

1.(n)- similar to donkey punch, this maneuver entails a homoerotic encounter between any animate male and a hugely obese man with a large bushy mustache, of course involving a stiff fist to the back of the head
2.(n) any physical violence to a large mustached fat man