[syn: jazz up, juice up, pep up, ginger up]
WordNet (r) 3.0 (2006):
pep up
    v 1: spur on or encourage especially by cheers and shouts; "The
         crowd cheered the demonstrating strikers" [syn: cheer,
         root on, inspire, urge, barrack, urge on,
         exhort, pep up]
    2: make more interesting or lively; "juice up a party"; "pep up
       your paper" [syn: jazz up, juice up, pep up, ginger
       up]
Moby Thesaurus II by Grady Ward, 1.0:
23 Moby Thesaurus words for "pep up":
   animate, arouse, dynamize, electrify, energize, enliven,
   exhilarate, fire, galvanize, hearten, inflame, invigorate, jazz up,
   kindle, liven, perk up, quicken, rouse, snap up, stimulate,
   vitalize, warm, zip up