
verkacken
to screw up
(Colloquial, vulgar) To do something completely wrong, to ruin a task or situation; to make a big mistake.
Ich habe die Prüfung total verkackt.
I totally screwed up the exam.
to screw up
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to screw up
(Colloquial, vulgar) To do something completely wrong, to ruin a task or situation; to make a big mistake.
Ich habe die Prüfung total verkackt.
I totally screwed up the exam.
This word is very colloquial and is felt to be crude or vulgar. Use it only in informal situations with friends and avoid it in written language or formal conversations.
Mist, ich glaube, ich habe es total verkackt.
Damn, I think I totally screwed it up.
The verb consists of the prefix 'ver-' and the vulgar verb 'kacken' (to shit). The prefix 'ver-' expresses here that something is done wrong or ruined, which reinforces the negative meaning.
Er hat die letzte Frage verkackt und deshalb die Prüfung nicht bestanden.
He screwed up the last question and therefore did not pass the exam.
'Verkacken' (to screw up) is mostly used transitively with an accusative object that describes what was ruined. The fixed phrase 'es verkacken' (to screw it up) is also very common.
Ich habe die Präsentation komplett verkackt.
I completely screwed up the presentation.
to fail / to deny
Both versagen and verkacken can express that someone does not complete a task successfully. Versagen is neutral and is often used without a direct accusative object or with „bei“, while verkacken is colloquial and vulgar and can take the task directly as its object. Use versagen in neutral situations; among friends, verkacken may be appropriate.

Beim wichtigen Vortrag verkackte er trotz guter Vorbereitung die Einleitung.
He screwed up the introduction during the important presentation despite having prepared well.
Beim wichtigen Vortrag versagte er trotz guter Vorbereitung.
He failed during the important presentation despite having prepared well.