Top definition
The word was first coined in the infamous 1968 film "Danny and the Postmaster". Often associated with homosexuality although equally applicable to heterosexuality, a poosterini is a rarely washed penis encrusted in feces. According to the movie, the creation of a poosterini requires complete neglect of hygiene towards the penis for a period of at least three weeks combined with consistent anal sex.

Pronounced: Poo-stir-e-knee
From "Danny and the Postmaster": "Danny, are you familiar with the term, poosterini?"
by HarryHaller June 21, 2009
Get the merch
Get the poosterini neck gaiter and mug.
Sep 9 Word of the Day
the thing that you don’t have when you’re phones percentage is over 20
phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz
by lik_frls_dis.me February 12, 2020
Get the mug
Get a sleep mug for your fish Larisa.