zelching is when a bunch of homosexual sn0gang members collectively drain each other with buttplugs, anal beeds, dildos, etc. the action also need to have any novagang song playing in the background.
person 1 "hey man are you down for zelching tonight?"
person 2 "fuck no miss me with that gay shit pussy"
When you put your girls toes in your mouth and swing her in a circle while jacking off. Any girl who would want this is definitely not the girl you want to do anything with.
“Dude she let me pull a Zelching on her!”
“How much did she cost?”