Top definition
A flat, usually round rock that can be thrown into the water. After being thrown high in the air, the rock enters the water vertically, and hardly creates any splash.
When hit on the head by a foomp bomb, the results can be quite disastrous.
by Miriam Anderson July 18, 2005
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