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
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug