belt up

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

Example Sentences

Mr Bukhari and his wife weren’t as badly injured because they were belted up.

From BBC

"We just have to tighten our belts up so we can still afford to bring him here."

From BBC

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

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

It is barely conceivable that tens of thousands of drivers and passengers make the decision each day not to belt up.

From BBC