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

Encyclopedia: ROFL

• carcinoid
• carcinoma
• carcinoma in situ
• carcinomatous
• carcinomatous myopathy
• carcinosarcoma
• card
• card catalog
• card catalogue
• card game
• card index
• card player
• card reader
• card shark
• card table
• card trick
• card-carrying
• card-playing
• Cardamine
• Cardamine bulbifera
• Cardamine bulbosa
• Cardamine diphylla
• Cardamine douglasii
• Cardamine pratensis
• Cardamine rotundifolia