Top Definition
To vomit violently, creating a "tidal wave of spew".
I drank so much last night, I was caught in a spewnami this morning.
by Stoink It July 01, 2010

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An ever increasing radius of nausea caused by a violent gastric eruption.

Particularly dangerous as each subsequent event could set off yet another spewnami.
Whilst coming in to land, the child got so upset it threw up, causing a spewnami to ripple and ricochet through the cabin.
by Mykatt June 08, 2014

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Lotsa space for your liquids.

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Profuse incident of vomiting, a portmanteau of "spew" and "tsunami".
Marie got very drunk and soaked Reg with spewnami.
by The Holy ettlz January 28, 2009

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt