Top definition
the act of one's nipples becoming erect when it is cold outside.
Nipplization will occur in 5.2 seconds, if you go outside today!
by angelblueeyes August 09, 2008
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