also: チア・ガール
cheerleader
Wasei-eigo from 'cheer girl'; refers to a female cheerleader in sports or events.
wasei-eigo (Japanese-coined English), from cheer girl
彼女は高校のチアガールだった。
She was a cheerleader in high school.
試合の前にチアガールたちが踊った。
The cheerleaders danced before the game.
She became a cheerleader in high school.
They danced as cheerleaders before the game.