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It's the British version of shut up.

Could also mean 'fasten your seatbelt'.
1. She told the students to belt up because they were making so much noise.

2. I told the kids to BELT UP before I started the car.
Belt up by Valda Tichenor July 10, 2006
Words you can keep
british slang for shut up, a rude way to tell someone to be quiet.
belt up by dragacrone January 24, 2013
Going to shoot up (ice etc), particularly tightening a belt around forearm to highlight veins (as nurses do)
"Ay der Marko bruva, we going to belt up or what cuz?!"

belt it up your arse 

Australian version of "stick/shove/ram/cram/jam/poke it up your arse"
Belt it up your arse: "When the mechanic told me it was gonna cost five hundred bucks to fix me car, I told him to belt it up his arse."

Belt me up 

When a person is about to fight and they want someone to hold them back. It’s basically saying hold me back like a belt holds up pants, or a seat belt holds up back.
Yo girl you need to belt me up now!
Belt me up by Joniyra Clark October 18, 2019
More from Urban Dictionary

High School Liquid 

A person who can freely travel between and fit in with all high school social groups and classes.
He is high school liquid, he ate lunch with the nerds and hung out with the jocks after school.
High School Liquid by Thaedris July 30, 2008
Word of the Day on September 6, 2026

Purple Patch 

To describe coming into something good, coming into good luck and or good times.

Like walking over small green hills in the countryside then coming across a purple patch of flowers, thus it being unique and out of the ordinary.
I hit a real purple patch.

The other day this good thing happened unexpectedly then I was lucky with this, it was unique, I hit a real purple patch.
Purple Patch by Ralph Shitstorm October 27, 2020
Word of the Day on September 5, 2026
(Ewokese) Freedom!
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!
yub nub by rotjrem November 4, 2010
Word of the Day on September 4, 2026
1. Meaning nasty, sexy, filthy. Popularized by Christina Aguilera.

2. Used usally as a close friend in hip-hop slang.
1. Wanna get dirrty
It's about time that I came to start the party Sweat drippin' over my body
Dancin' gettin' just a little naughty

2. Sup Dirrty? Haven't seen you in a while.
dirrty by Minty November 30, 2003
Word of the Day on September 3, 2026
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