1. To increase or enhance someone's excitement, interest, energy, or alertness. A noun or pronoun can be used between "pep" and "up." The show was going really poorly until the host came out and pepped the audience up. I think I need some coffee to pep me up.
2. To make something more interesting, engaging, or exciting. A noun or pronoun can be used between "pep" and "up." I always use some red chilies to pep up my soups and stews. Have you considered using electric guitars to pep the song up a bit?
Stimulated; made to be or feel more awake, alert, and energetic. Hyphenated if used before a noun. I just can't focus until I get pepped up with a bit of coffee in the morning. The officer suspected that the pepped-up truck driver might have been high on amphetamines.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
See pepped up
See also: pep
pepped (up)and peppy
mod. alcohol intoxicated. (see also perked (up).) That guy looks a little pepped up. Don’t give him any more booze.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.