Top Definition
When the scrotum shrinks to the point that it pushes the flacid penis up to appear as if it is a tiny boner, you have what is called, a shrinkage boner. Generally occurs during cold and/or wet circumstances, i.e. getting out of the ocean, pool, outdoor shower, etc.
I just got out of the pool and I totally have a shrinkage boner, want to see?
by Tommy_Z June 08, 2012

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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