накосячить bedeutet auf Englisch

botch [botched, botching, botches]▼(to do something without skill, without care, or clumsily)
verb
[UK: bɒtʃ] [US: ˈbɑːtʃ]

fuck up▼(to make a mistake, to go wrong)
verb
[UK: fʌk ʌp] [US: ˈfək ʌp]