An expression of enthusiasm, expressed by high school and college cheerleaders at sporting events.
noun
A pleated miniskirt, so named because of the resemblance to skirts typically worn by high school and college cheerleaders, who normally chant "rah-rah" at sporting events.
verb
(ambitransitive) To express noisy enthusiasm (about).
[…] the official gen-art person was rah-rahing the organization how great and fabulous they are and i just wanted to roll my eyes. they were taking themselves quite seriously it reminded me of when we used to throw those charity fashion show parties in college […]
Oswald Eakins, Deep Inside Diana, The Pain and The Secrets
People rah-rahed about her good fortune of marrying a Prince, but no one, not even Diana had an inkling of what destiny had in store for her.