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

Encyclopedia: ROTFL

• ecliptic
• eclogue
• ECM
• eco-
• eco-friendly
• eco-warfare
• eco-warrior
• ecobabble
• ecocide
• ecologic
• ecological
• ecological niche
• ecological succession
• ecological terrorism
• ecological warfare
• ecologically
• ecologist
• ecology
• econometric
• econometrician
• econometrics
• econometrist
• economic
• economic aid
• Economic and Social Council