no manches

Spanish

Etymology

From no (“negation”) and manchar (“to stain”), conjugated as a command for tú (“you (informal, singular)”). Literally, don't stain or don't ruin.

Phrase

1. (Mexico, informal) don't screw around, stop joking, stop being silly

   ¡No manches! ― Shut up! Are you kidding? Stop being an idiot!

Synonyms

• no mames (Mexico)
• no jodas