Top definition
Slang for the break room of an office. Called this because when a cake, cookies or other goodies are left out, the office workers tear into it like a Piranha on fresh meat.
Sally: Are those girl scout cookies?

Betty: Yes, I bought them from the neighbor girl.

Sally: Don't leave them in the Piranha Tank or you will never see them again.

Cristi left her day old donuts out on the table in the Piranha Tank and they did not last til noon.
by B. Hanback April 03, 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

Alphabetical list