using as much strength and effort as possible.

Someone or something whose potential greatness was not achieved.

(idiomatic) A response (often with a hint of sarcasm) to a situation which one thinks that there is no chance of ever occurring.

plural of might-have-been

Alternative form of so crazy it just might work

(informal) Possibly feasible though unconventional; plausible and previously unconsidered as a course of action.

Alternative form of if wishes were horses, beggars would ride

(Canada, US, slang, vulgar) A response to a situation that one thinks has no chance of ever occurring.

Obsolete spelling of mighty

(idiomatic) Overbearingly arrogant; ostentatiously self-important or self-aggrandizing.