Common name in Germany for one intoxication, It has been used under “having a monkey (sitting) (buying)” since the beginning of the 19th century. The origin is not certain. Among other things, the phrase is said to be due to the monkey's alleged drinking addiction. A second variant calls the similarity and thus confusion between the Czech expressions "opice" (monkey) and "opit se" (get drunk). And a third says that this refers to the jugglers who used to appear at fairs with a monkey on their shoulders.