Top definition
When it is so cold outside that when you breathe out of your nose you can see it.
"Hey John, it's 10 degrees outside!" "Wow Billy, that's nosebreath cold!"
by luluyakyak January 31, 2009
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