An Argentine slang phrase, 'buena guacho' is used to express approval, agreement, or commendation. 'Buena' means 'good' and 'guacho' is a colloquial term for 'guy' or 'dude'. So, 'buena guacho' can be loosely translated as 'good job, dude' or 'nice one, guy'.
Examples
- Spanish: 'Buena guacho, me encantó tu nuevo coche.'
- English: 'Good job, dude, I loved your new car.'