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

Encyclopedia: ROTFL

• graffiti
• graffito
• graft
• grafter
• grafting
• graham
• graham bread
• graham cracker
• graham flour
• Graham Greene
• Grahame
• grail
• grain
• grain alcohol
• grain merchant
• grain moth
• grain sorghum
• grainfield
• Grainger
• graininess
• graining
• grains of paradise
• grainy
• grainy club
• grainy club mushrooms