An idea that seems brilliant when one is drunk but is ridiculous when sober.

Origin: The term 'Schnapsidee' originates from the German language, composed of 'Schnaps' (a type of strong alcoholic drink) and 'Idee' (idea). The word 'Schnaps' can be traced back to the Germanic root *snapp-, referring to a gulp or swallow, which evolved into the Middle Low German 'snaps' and later into modern German as 'Schnaps'.
Historical and Cultural Context: The word 'Schnapsidee' first appeared in colloquial German in the 19th century, reflecting a cultural tendency to humorously blame foolish ideas on the influence of alcohol. It was popularized in German literature and everyday speech.
Evolution: While the individual components of the word have remained consistent, its usage has expanded beyond German-speaking countries, often used in English-speaking contexts to describe whimsical or impractical ideas conceived under the influence of alcohol.
Modern Relevance: Today, 'Schnapsidee' is used both in Germany and internationally to humorously criticize or dismiss unrealistic ideas, especially those conceived in social settings involving alcohol. It has maintained its original meaning with little semantic shift.

Despite its humorous connotation, 'Schnapsidee' is sometimes used affectionately to describe creative or out-of-the-box thinking that initially seems implausible.