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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Refrain of a college song. 5 letters:

BOOLA: Refrain of a college song.
BOOLA: Refrain word in a college song.
BAABAABAA: College-song refrain
BOOLABOOLA: Refrain from a college song.