When twenty one guys all get boners at the same time.
"Hey let's all get together later and do a twenty one gun salute."
by Unknown37 April 14, 2016
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A one to one meeting where the organiser does not turn up
My boss pulled a one twenty on me. I turned up for a meeting that they organised and they told me after they forgot all about it and will have to rebook
by Cartlings29 March 29, 2019
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the world's first artist (consisting of tyler joseph and josh dun) to specialize in an underground genre known as "ukulele screamo"
"did you know they listen to twenty one pilots"
"what a weirdo"
by nophun0 September 26, 2021
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Twenty One Pilots is a band with potential, composed of a coward, Tyler Joseph, and a wonder of the world, Josh Dun. Their lyrics are deep, for example:
-I'm a bendy-toe

-Help me bowl of rice

-Josh Dun !
-I put my socks on my feet

-Tyler Joseph, Twenty One Pilots
by Chepillon April 12, 2019
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