IdiomAnimalsGerman

Einen Kater haben

Meaning: To have a hangover.

Literally: To have a tomcat

Example: “Nach der Hochzeit hatte er einen fürchterlichen Kater.” — After the wedding he had a terrible morning after the night before.

English equivalent: The morning after the night before

Origin: Kater means tomcat, but here it is usually taken as a popular pronunciation of the medical term Katarrh, a vague illness of cough, sniffles and headache. In 19th-century student slang the misery after a night of drinking was called Katzenjammer (cats' wailing), after the howling of tomcats, and the two words may have run together. Either way, a hangover has been a Kater since the 19th century.

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