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

Encyclopedia: ROFL

• humanist
• humanistic
• humanistic discipline
• humanitarian
• humanitarianism
• humanities
• humanity
• humanization
• humanize
• humanizer
• humankind
• humanlike
• humanly
• humanness
• humanoid
• humans
• humate
• Humber
• Humber Bridge
• humble
• humble plant
• humblebee
• humbled
• humbleness
• humbling