Top Definition
Toilet that has overflowed large amounts of pooh.
Public washroom at work had been filled with paper towels and flushed many times. Eventually plugged the main sewer line. All toilets overflowed, waste throughout the main offices including the Plant Mangers. Carpets had to be replaced and entire area sanitized-"what happened?- we had a poohnami"
by poohster February 25, 2010
1 more definition
Flatulence released into a body of water creating a tidal wave effect.
Chris caused a Poohnami when he ripped one in the pool.
by Juice Monkey Store August 30, 2013

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