Definitions by Cricketa'

pash-rash 

a rash around the perimetre of the lips that is caused by pashing/snogging a guy/girl with facial stubble, resulting in a nasty ass rash.

Karen came to school the next day with a scarf over her mouth because her pash-rash was so obvious

pash-rash by Cricketa' September 22, 2005