balls up(redirected from balls-up)
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1. adjective Horribly awry to the point of complete ruin or disaster. Mary's Monday morning routine went balls up when she spilled coffee on herself, missed the train, and arrived to work late.
2. noun (usually hyphenated) A blunder that causes disastrous results; a mess-up. The balls-up with the code has put the entire software platform in jeopardy.