Estar como una cabra. Literally means to be like a goat and is used to mean acting strange or crazy.
Es pan comido. Literally means it’s eaten bread and is used to mean something easy, similar to ‘It’s a piece of cake’ in English.
Hablar sin pelos en la lengua. Literally means to speak without hairs on the tongue and is used to mean speaking directly or without ‘mincing words’.
Me la suda. Literally means ‘I sweat it’ and is used to mean ‘I couldn’t care less’.