The Poomanchu is simply a fumanchu drawn on a face with a poopy penis after being removed from a poopy butthole, hence, Poomanchu.
by PSN March 08, 2007
When you stick a Dog toy in your ass and have your dog try and pull it out of your rectum while holding it in for at least 8 seconds or until orgasm.
I was experimenting with anal play using my dogs chew toy and he started playing tug-o-war. Needless to say I lost that PooManChu.
by SaltyTunaMan October 07, 2018