Gaycring
When you see something particularly hilarious when you're online and it's SO hilarious that you start laughing really hard and therefore produce tears. While you're crying/laughing, you try typing and a jumble of letters comes out (known as 'keysmashing') and you just continue to laugh until you almost throw up.
"Hey, look at this really funny picture!"
"OH MY GOD KLJ;EHW;FKLJSD I'M GAYCRING"
"OH MY GOD KLJ;EHW;FKLJSD I'M GAYCRING"