Top definition
Intestinal gas that develops due to the consumption of Mcphilly cheese steaks.
Mcdonald's Mcphilly Cheese steak gave me Mcphillygas.
by Tavi December 05, 2003
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