Question 1

What does "pep up" mean?

Accepted Answer

To make a person feel more energetic or enthusiastic.

Question 2

How do you use "pep up" in a sentence?

Accepted Answer

A short walk outside really pepped me up after hours at my desk.

Question 3

Is "pep up" formal or informal?

Accepted Answer

"pep up" is informal — used mainly in casual conversation. 'Pep up' comes from 'pep', an informal word for energy and enthusiasm. It can be used transitively ('this coffee will pep you up') or intransitively ('she really pepped up after lunch'). Common in everyday informal speech. Often used to describe the effect of food, drink, exercise, or encouragement.

pep up

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