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bungle [bungled, bungling, bungles]▼(to incompetently perform (a task); to ruin (something) through incompetent action, see also: botch up; bumble)verb[UK: ˈbʌŋ.ɡl̩] [US: ˈbʌŋ.ɡl̩]
screw up▼(colloquial: to make a mess of; to ruin)verb[UK: skruː ʌp] [US: ˈskruː ʌp]
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