Top definition
TBSN is a short way of saying "The box says no." which is a line from the Futurama episode "The Farnsworth Parabox".
Guy I: "Hey, you got any porn?"
Guy II: "TBSN."
by LaClown September 21, 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