Top Definition
Silently Laughing In My Face. When something is hilarious yet you cannot laugh out loud.
Appropriate in offices when something is funny yet you don't want others around you to know that you are secretly wetting yourself - SLIMF
by SLIMF January 27, 2013
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.