Top definition
An exclamation by someone who enters into the room at random.
"Gashark! Obviously the sound a shark would make entering into a room uninvited."

by the midnight lurker November 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