To be left wanting, to miss out on something you really desired. Quedarse con las ganas is the frustration of coming so close and still not getting it.

To be hardheaded — stubborn, slow to understand, or unable to learn from mistakes. Someone with a hard head repeats the same error a thousand times and still won't change.

To strike out with the opposite sex — failing to flirt with anyone or attract any romantic interest. The Spanish way of saying you went home alone after a night out.

Lazy, sluggish, with no motivation to do anything. Can also describe someone so settled in a place that they have no desire to move — like a banana that's gone too soft to pick.