Related Clues:
- Sound of a generic cheer
- Cheerleader's halftime holler
- When repeated, zealous
- Match noise
- "We're No. 1!" relative
- Old school cheer
- Bleachers bellow
- Simple cheerleading cry
- Retro show of support
- Old-school show of support
- Lead-in to "sis-boom-bah"
- Cheer made with a pompom
- Syllable of good cheer?
- Cheerleader's yell (though maybe not so much these days)
- Motivational speech component?