Top definition
A bi-sexual woman that only allows bisexual contact on her upper body or exclusively on the breasts.
Erin still would like to have a relationship with Jessica even though she is only nipple-bi.

by Todd Anthony L. November 04, 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