"Hilarious!," in a text

• "U so funny"
• "OMG, I'm cracking up!"
• "OMG that is funny"
• "lol," escalated
• "u r hilarious!"
• "This tweet is hilarious!"
• ROFL alternative
• "Wow, that's 2 funny!"

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