verkackt
screwed up, botched, blew it (crude colloquial)
Origin
The / of the vulgar 'verkacken' (to botch something thoroughly), formed from the prefix 'ver-' and 'kacken' (colloquial 'to defecate'). Wiktionary marks it as 'colloquial' and 'vulgar'; it means roughly 'very bad' or 'failed'. It is common in youth slang for a clear failure, such as flunking an exam.
Building blocks
Words in this expression
Examples
Ich hab die verkackt.
I totally screwed up the exam.