Schnapsidee
ʃəɾaːb mẽː aːjaː ʋɪcaːɾ ʃaɹɑːb meɪn ɑːjə vɪtʃɑː ɐn aɪdiə ðat kʌmz waɪl dɹʌŋk
In Hindi शराब में आया विचार (Sharaab mein aaya vichaar) - An idea that comes while drunk.
A crazy or foolish idea, often thought of while drunk or under the influence of alcohol.
Example
"Das war doch nur eine Schnapsidee von ihm."