An aggressive term used on various ROBLOX games (most notably The Streets) to get an opposing party to proverbially "mic up" by talking to them on an app with voice calling, usually Discord. The term was first used in 2017 by sheddinator when fighting the head of the Ro-Banging gang Re$tort, yn2x.
Ro-Banger 1: ay cuh mic up rn ######
Ro-Banger 2: lemme hear yo bitch ass voice in the call then
by paki instincts March 27, 2020
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what teenagers say when they tryna be all cool around their online friends. To call someone Voice chat Mostly found on Roblox
You think you're hard? Wanna be even harder on call?

Wanna say that on call?
Bet you won't say shit on call

mic up - what teenagers say when they tryna be all cool around their online friends. To call someone Voice chat Mostly found on Roblox
by byeluv October 09, 2019
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A term commonly used to provoke another person into joining a voice chat with the requesting party. This is commonly found in video games when one player becomes angered with another, or both parties are angry with each other.
Player 1: Wow, you're literally so terrible at this game kid.
Player 2: Really? Mic up. We'll see who's boss.
by Jocelyn Kolesnichenko May 23, 2019
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The term 'mic up' is actually slang for: "i'm a lesbian fur child" in German.

Sometimes you see people use it in games, even in real life! Congratulations, you now just learnt a new definition for a shitty word!
Bob: 'Hah! I beat you in Smash, what're you gonna do?

James: 'MIC UP!'

--You see, James is a fucking idiot.
by virginity shield June 30, 2020
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POV: You just pushed a slender’s copy and paste
He’s probably 8, so don’t worry.
24kVinniexx: MIC UP KID!1!1
You: No thanks you’re probably 8.
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shit people on roblox use to be tough as fuck, telling the other party to hop on discord and voice chat with them. used in games that have a toxic community e.g. jailbreak, phantom forces, counter blox, black magic, etc.
Player #1: yo nigga ur bad at that class
Player #2: the fuck u say?
Player #1: stop acting tough as shit man we all know you ain't shit
Player #2: alright retard mic up we gonna see whos tough as shit unless you cant handle a true mans voice
Player #1: every mf that plays roblox is atleast 12y/o the fuck u want
Player #2: aight bet get on discord right now
by mic up whore January 06, 2020
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A saying mainly used by Roblox kids. By saying "mic up" it means that they want to voice chat using an app called Discord. It is mainly used in aggressive fights in Roblox games.
Slender: mic up bro
Emo: no
Slender: u scared bro
by uhweirdd March 24, 2021
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