rah-rah (comparative more rah-rah, superlative most rah-rah)
- Marked by noisy enthusiasm
- An expression of enthusiasm, expressed by high school and college cheerleaders at sporting events.
rah-rah (plural rah-rahs)
- A pleated miniskirt, popular in the early 1970s and for a brief time in the 1980s; so named because of the resemblance to skirts typically worn by high school and college cheerleaders, who normally chant "rah-rah" at sporting events.