Towards a Manual of Communication for English Speakers visiting Mexico City
Monday, September 6, 2010
En el ácido
En el ácido literally means 'on acid', as in 'on LSD'. It's an expression that has nothing to do with the actual consumption of illegal drugs. En el ácido is used to refer to an extremely upset or perturbed person, usually by an undesirable situation. The person en el ácido often behaves as if he or she were hallucinating with the help of LSD: frantic looking eyes. sweating, not-making much sense, etc.