"OMG, I'm cracking up!"

• "OMG that is funny"
• Response from a greatly amused texter
• "lol," escalated
• "This tweet is hilarious!"
• Response to a funny tweet
• "U so funny"
• "u r so funny!"
• "u r hilarious!"

Wiktionary Word definitions in Wiktionary
init. (context Internet slang English) (alternative case form of LMAO English)