Top definition
rule 81internet
A woman will know exactly when you're staring at her breasts. No exceptions.

This is applicable to all situations, not just on the internet.
Sienna sensed a definite rule 81 moment despite John's calculated diffidence.
by eViL pOp TaRt April 20, 2010
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