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

Encyclopedia: ROFL

• xanthophyl
• xanthophyll
• xanthopsia
• Xanthorrhoeaceae
• Xanthorroea
• xanthosis
• Xanthosoma
• Xanthosoma atrovirens
• Xanthosoma sagittifolium
• xanthous
• Xantusiidae
• Xavier
• xc
• xci
• xcii
• xciii
• xciv
• xcl
• xcv
• xcvi
• xcvii
• xcviii
• Xe
• xebec
• Xenarthra