ˈonce-over noun
give something the/a once-over
a) to look at someone or something quickly to check what they are like
b) to clean or tidy something quickly

[TahlilGaran] Dictionary of Contemporary English ▲

once over
n., slang
1. A quick look; a swift examination of someone or something.
■ Usually used with "give" or "get".
The new boy got the once-over from the rest of the class when he came in.
Bob gave his paper the once-over before handing it in.
2. or once-over-lightly A quick or careless job, especially of cleaning or straightening; work done hastily for now.
Ann gave her room a quick once-over-lightty with the broom and dust cloth.
"Just give my hair the once-over," Al said to the barber.
Compare: LICK AND A PROMISE.

[TahlilGaran] English Idioms Dictionary ▲