1. Rolling on the floor laughing; indicates that something is thought to be highly amusing
   - ROFL

Encyclopedia: ROTFL

• blow-by-blow
• blow-dry
• blowback
• blowball
• blowdown
• blower
• blowfish
• blowfly
• blowgun
• blowhard
• blowhole
• blowie
• blowing
• blowing gas
• blowing up
• blowjob
• blowlamp
• blown
• blown-up
• blowout
• blowpipe
• blowsy
• blowtorch
• blowtube
• blowup