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When you try and type :3 emoticon but then you don't take your hand off the shift.

You're so cute!!! :#

:# by Isabelle-chinchilla June 17, 2020

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A symbol representing someone giggling and covering their mouth with their hand.

"You're such a whore! :#"

:# by cabbagez May 17, 2009

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the internet slang term for I have braces

Mr.Magoo wearing his gay braces

:# by alec January 23, 2005

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The mistake you make when you try to type :3 but it ends out with # instead of 3

:# oh crap i didn't mean to type that i meant :3

:# by Ash the Fox April 14, 2020

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A smiley to communicate 'death' or a situation that is very annoying.
A step up on the annoyance smiley scale from :/

1. TOTAL ANNOYANCE - :#
2. QUITE ANNOYED - :!
3. MILDLY ANNOYED - :/
4. NOT BOTHERED - :|

"spending the day with my family tomorrow :#"

:# by Maudy January 7, 2008

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Face meaning you don't have words to say (cat's got your tounge). Or you are being held hostage and can't speak.

Friend: Then I saw that girl again but I was too busy staring at her booty instead of saying hey.

Me: :#

:# by Marcoose The Goose May 7, 2016

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A smiley that when typed into AOL's AIM instant messenger would yield a kissing face emoticon

Dad: I got my first :# from your wife at the 2003 senior prom
Son: Wow Dad, what a way to let you know it was official

:# by xgum March 15, 2025