Wiktionary
n. An organized squad of cheerleaders.
Wikipedia
Pep squads are found in high schools, middle schools and sometimes elementary schools in the United States. The pep squad's main duty is to promote school spirit. Pep squad members make posters, cheer for school sports teams, and help with pep rallies. During games, pep squads lead cheers and chants. A pep squad is often similar to a cheerleading squad, but is usually a separate organization. In some cases, a dance team serves as a pep squad. Pep squads and cheerleaders often perform the same or similar kinds of routine, although they differ in costume and style.
Pep squad uniforms vary by school. A traditional uniform is a skirt and a top in school colors. Sometimes pep squads use pom-poms. Some squads, especially those that perform intensive dance routines, wear colorful dance costumes.
Usage examples of "pep squad".
Orin walked south off the field solo and disconsolate, helmet under his little right arm, with not even a wistful glance back at the Pep Squad's P.
Grunts and thumps, the sound of helmet against helmet, the incessant screams of the pep squad, the boisterous verbosity of the fans-it verged on something wor~e than Dante had ever envisioned for the lowest circles of the Inferno.
She has this huge group of friends, she's in the Drama Club (and always gets the leading roles in their plays), and she's a member of the Pep Squad.
Morgen Bredell had been in one cheerleading or pep squad or another since she was eight.
Shirelle Pomfritte had been on the sidelines, practicing a routine with the pep squad.
The woman was old enough to be my great-great-great-great grandma, even if she looked like she just made the pep squad.