Top Definition
When a male or females nipples tell how cold or warm it is by their hardness.
Jacob could tell it was a cold night when he saw Lisa's pop-up thermometers.
by styles of beyond December 12, 2005
5 Words related to pop-up thermometers

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.