The act of shitting yourself while laughing at something. This happens because you were laughing so hard, your anus laughed with you.
Friend 1: 'My little sister told me the Justin Bieber movie was the best experience of her life and started to cry'
Friend 2: 'What did you say?'
Friend 1: 'I started laughing uncontrollably, but then I had a Sphincter Giggle and ran to the bathroom to clean up'
Friend 2: 'OMG I think I just had one too!'
Friend 2: 'What did you say?'
Friend 1: 'I started laughing uncontrollably, but then I had a Sphincter Giggle and ran to the bathroom to clean up'
Friend 2: 'OMG I think I just had one too!'
by thatguywhosaysstuffsometimes February 28, 2011
Get the Sphincter Gigglemug. "Last night on call you had some of the midnight giggles."
"Congrats you have performed the midnight Giggles."
"Congrats you have performed the midnight Giggles."
by TallTart May 31, 2023
Get the The Midnight Gigglesmug. by 1427252 October 15, 2023
Get the Giggle petitelymug. Slang for shits and gigs
by Daniel Baptist June 21, 2024
Get the giggles and cumsmug. by Per-Son May 20, 2022
Get the Shits-And-Gigglesmug. When you can’t stop laughing during an inappropriate moment & it makes you laugh even harder. For example, you’re in a serious meeting & you get a case of the giggles that you can’t stop.
by My dad left for cigarettes  October 31, 2022
Get the forbidden gigglesmug. A “Giggle God” is one that is flamboyantly thick and is one that is in a super zesty mood all the time who like to giggle in serious situations .
by sharavisniceandtall  May 6, 2023
Get the Giggle Godmug.