upper echelon in the military refers to people of higher ranks (usually officers) in everyday life it is in references to bosses and managers and the like
Se usa cuando se le pone mucho entusiasmo a alguna actividad...
-¡vamos equipo, echenle galleta!
Mexican idiom which literally means “throw cookie” but you use it as “Come on” It’s used when you put a lot of enthusiasm to some activity ...