act one's age

(redirected from act his age)

act one's age

Behave more maturely. Although the phrase often is used in asking children to act in a more grown-up fashion ( Only babies suck their thumbs; act your age), it also may refer to an adult who is, sometimes deliberately, acting much younger than might be considered appropriate ( Grandpa, it's time you stopped climbing ladders and acted your age).
See also: act, age
References in periodicals archive ?
Brendan Fraser fails to act his age in an irksomely quirky comedy.
She said the age-gap didn't bother her at first because he didn't act his age.
Freshman catcher Nate Johnson certainly didn't act his age.
The disappearance of his album has shown this to be a failure,and record company bosses have instructed the star to act his age.
The Last Kiss'' stars Zach Braff as a 29-year-old man who is trying to grow up or -- really -- act his age in this youth-fixated society.
PRIMAL Scream's Mani clearly forgot how to act his age - and got arrested by cops for being drunk and disorderly at the Marriott Hotel in Leeds.
Either big, blonde Hotlegs is for the high jump, or she'll be grounded until she learns to act his age.
Welsh fans will have their first chance to decide whether Tom Jones is starting to act his age, not his shoe size, when he plays the capital this year.
After a decade of turning up come rain or shine and a reminder from me that he should act his age he finally hung up his boots last year when he realised half the team were young enough to be his sons.
AUSSIE swimmer Ian Thorpe will not be offended if his rivals tell him to act his age and not his shoe size.