Bart's Dog Gets an 'F'

Literally 'rogue', but used affectionately or playfully to describe a person or animal that is mischievous or up to no good. The tone is warm rather than condemning.

Refers to someone who talks a lot but has no real expertise, or who sells false remedies or methods. Often used to dismiss someone's credentials or advice as worthless.

A fixed phrase describing someone who clings to traditional values or methods and resists change. The speaker often uses it to justify their own strict stance. Common across Latin America.