ass fungus 

when you have anal sex and your leave some excess cum in the asshole and it becomes hard and fungus like

Johnny left some ass fungus in richards mom last night

ass fungus by symphony j tattly November 5, 2007

Assungus 

1. A below average sized penis

2. Abbreviation for Actually super sexy unless Nigel gains undeniable shlong

1."Bros got an Assungus", "Bros an Assungus", "Bro can suck my Assungus"

2. That's Assungus

Assungus by THE ALL POWERFUL TICKLER October 26, 2022