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1.
When one's nipples harden due to cold air or excitement. See indicating
I got nipple freeze when I walked outside.
by imaprettycoolbrunette January 30, 2005
 
2.
see also indicating

when one's nipples harden due to excitement or pleasure.
I had nipple freeze when I went up front for my speech in english class.
by imaprettycoolbrunette January 12, 2005