The Brief: This is a synonym for LMFAO. The idea is that one has laughed so hard, it killed them and they are now dead.

DEEP DIVE
This is a synonym for LMFAO. The idea is that one has laughed so hard, it killed them and they are now dead (not literally). Variations may include descriptions of just how “dead” someone is.
More traditionally, it means “I’m tired.”
I'm dead 🤣🤣🤣🤣🤣🤣🤣🤣
Some MAGA hats made in China may increase in price because of tariffs https://t.co/ijyRXHRpQU
— 💙Koko ✊🏻✊🏾✊🏿💙 (@Kokomothegreat) July 15, 2018
i’m not sure who died faster, gay men or gay women. but either way all gay people are dead now pic.twitter.com/Hr6Ddrp8Ex
— Jill Gutowitz (@jillboard) July 17, 2018
My mind located to my heart 😂😂😂😂😂😂😂😂 I'm dead 😂😂 pic.twitter.com/6xW7WrLwhI
— Dee 🍀 (@Dee_Waterson) July 14, 2018