Top definition
The single most important thing about a breast past the A cup.

BTNR stands for "Boob To Nipple Ratio."

A girl with a large rack and small nipples is said to have a good BTNR, while one with large nipples is said to have a bad BTNR.
"Hey bro, what's the BTNR on her?"
"Sub par. The nips are like pancakes."
by Andrew Helms November 20, 2011
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
2
<Breathing Through Nose Rapidly>

When you read/see something on your computer screen that doesnt make u laugh, but makes you breathe through your nose rapidly
Jacob: My favourite band is Nsync.

Nikki: BTNR, ur joking right?

Jacob: No? why would i, uve seen my itunes.
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

Activity