(idiomatic) Used to express somewhat reluctant assent, saying that if one situation exists (or because it does exist), another event or situation that would otherwise be undesirable, difficult, impossible, etc., becomes more feasible or reasonable, or would not make a difference.

With all one's strength; as hard as one can.

All one's strength.

(double modal / stacked modal, used in some dialects, chiefly Southern US) should perhaps (used to soften "should" and make it less of a command)

(double modal / stacked modal, used in some dialects, chiefly Southern US) might be able to (used to soften "could" or make it even more conditional)

(double modal / stacked modal, used in some dialects, chiefly Southern US) might be able to; be potentially able to

Alternative form of might makes right

plural of might-be

Whatever the powerful want is morally unquestionable, whether because power preempts moral consideration, the powerful determine right and wrong, or power is self-justifying.

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