Top Definition
a very old woman (like 60+) that still goes after young men. A siberian tiger is much older than a cougar, bobcat, or mrs. robinson, probably along the lines of a GILF.
I've been banging this cougar lately, shes like 68.

Bro thats too old for a cougar, shes is a siberian tiger.
by Neege June 23, 2007

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Photos & Videos
The act of riding a bike up someones anus
I'm so sore after Dave siberian tiger'd me last night
by positive1 September 26, 2010

The Urban Dictionary Mug

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

Your favorite word on a white mug.

Create a mug

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

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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