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

Crossword clues for Go ___ (fail) 5 letters:

AMFUU: Where you're going when you're seriously failing?
UNDER: Go ___ (fail)
UNDER: Fail, after "go"
ARC: Fail to go straight
MISFIRE: Fail to go off