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belt up

British  

verb

  1. slang to become or cause to become silent; stop talking: often used in the imperative

  2. to fasten with or by a belt, esp a seat belt

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For now, however, travelers should check airport rules — and belt up, sip down and be ready to unpack.

From Salon • Jul. 19, 2025

I remember getting a lot of Looney Tunes oversized T-shirts — whenever we talk about throwback T-shirts, that was always one — and baggy pants that I had to belt up.

From Los Angeles Times • Dec. 1, 2021

The Liverpudlian puts his WBA world super-middleweight title up for grabs in San Antonio and with the vacant WBC belt up for grabs too, the winner will hold two of the four belts at 168lbs.

From BBC • Dec. 18, 2020

The jet stream's unusual northerly course also helped suck the tornado belt up from its more normal Kansas-Oklahoma-Missouri route, causing a disastrous twister in Chicago's suburbs.

From Time Magazine Archive

“But lock that belt up first at the bottom of your box or where it’s safest.”

From Glyn Severn's Schooldays by Pears, Charles