Top definition
When you have mustache stubble and eat a girl out. It gives her a rash.
"I give rashes with my mustaches"

"My pussy hurt so bad from that mustache rash"
by Mustache rash January 11, 2014
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