Dc
Disconnect
Example
A man who wants you to dc right now
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Last Updated: September 28, 2021
Dance credit
TikTokers sometimes include DC in the captions of their videos when giving credit to the original creator of a dance move. For example, when a user posts a video of herself doing a new dance move, she may caption it with, "Obsessed with this. DC: @doeJohn."
TikTokers began using DC in the late-2010s to quickly give props to the original creators of a dance move. As a result, users recognize the acronym as proper etiquette instead of blatantly ripping off content. TikTokers may also use IB instead of DC, which stands for "inspired by."
Example

DC caption in TikTok
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Last Updated: April 21, 2022
Daycare
An abbreviation sometimes used by parents in online forums, email messages, and social media sites.
Example
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Usage
Last Updated: August 1, 2014
Gamers use dc to note that they or another player has disconnected from an online game. For example, if you are playing LoL, and a player who appears to have been AFK sends a message saying "dc," it's likely that player actually got disconnected.
There are many reasons a player might get dc'd from a game, including:
While an untimely dc can cause you to lose a game, don't be too harsh on an ally who got dc'd. After all, they're likely just as upset about their dc as you are.