Top definition
A radiator leak; the slow leakage of antifreeze from a motor vehicle's cooling system
My car had her Vulcan period, leaving a green stain on the ground.
by Gerald Busey July 04, 2009
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