A combination of 'Until' and 'Till', used when you can't decide between writing an informal or formal sentence.
'You used to write until untill you learned all the cool kids say untill. Because every L needs a friend.'
by Bab Rass October 1, 2020
Up to the time of or the time before something. The abbreviation of until is 'til and not till as some incorrectly use.
Now I must wait until you get a dictionary to learn how to spell.
by Repete456 December 23, 2009
A one day trend that originated from the era of the Coronavirus pandemic of 2020, specifically on March 24, wherein people's boredom led them to do nothing better than to log into instagram and spend the whole day doing challenges. It's basically a challenge where you have to post an embarrassing picture of yourself and delete it the next day.
by Mohogot March 25, 2020
The latest challenge on Instagram sees users post weird and cringey pictures of themselves for the next 24 hours.
Until tomorrow written in the caption of a picture of me showing off my nostrils or my butt stuck in a bucket. Easy and Simple
by jwalto376 March 24, 2020
you might have seen everybody posting on their instas funny pictures with the caption “until tomorrow” this means that that they are keeping the picture on their feed until the next day in which the next day they delete the picture
what does until tomorrow mean?”
by Watemamdjck March 25, 2020
The newest Instagram challenge that lets users post embarrassing pictures of themselves and the caption can only read “Until tomorrow

If a person likes one of these posts, they might receive a dm from the user that says something along the lines of “ So....you liked my post so you have to post an embarrassing picture of yourself, for the caption you’re ONLY allowed to write “until tomorrow" and you can only tag me. You must send this message to everyone who has liked your picture. The picture must stay posted for 24 hours. Good luck and don't spoil the game!“
Random person: *posts gross picture*
Their caption: uNtiL tOmOrRoW
Instagram challenge where you post an embarrassing picture and leave it up till tomorrow usually tagging a person you would like to see as well.
Bro 1: Bro did you see what carry posted for her until tomorrow challenge

Bro 2: yeah dude sucks she’s taking it down tomorrow
by guntergoward March 25, 2020