smarten up

behavior appearance

The phrase 'smarten up' is commonly used to describe improving one's appearance or becoming more sensible and responsible.

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Definition

B2General

(informal)To improve one's appearance by dressing more neatly or stylishly.

Example

He decided to smarten up for the job interview by wearing a suit.

B2General

(informal)To become more intelligent, sensible, or responsible.

Example

It's time to smarten up and start taking your studies seriously.

Similar

Terms that have similar or relatively close meanings to "smarten up":

sharpen up get wise shape up straighten up man up nut up grow up look sharp get with the program clue up know better use one's head read up tighten up harden up boss up sort oneself out mug up gen up polish up brighten up step up smart as paint spruce up fix up straighten out perk up pimp up brace up buck up butch up get right rub up on lighten up prick up