Killermuschi Share definition Flag muschi (origin from German meaning Vegina) that destroys dicks. Often refered as a hole with tentacle hair that pulls your face into it until your drowned. A: Ewww! At that old age she dresses like a slut. B: Yea, she got a Killermuschi Killermuschi by trololololol1 May 5, 2011 Get the Killermuschi mug.