(poker) A poker hand which is already a strong hand regardless of which cards come in later rounds.

Alternative spelling of handspring

(poker slang) A king and a three as a starting hand in Texas hold 'em (see king crab)

(poker) A poker hand which requires some specific cards on later rounds in order to become a strong hand.

(poker slang) A seven and two as a starting hand in Texas hold 'em.

(Britain) An expert; a very skilled person.

In billiards, a circumstance in which a fault by another player, such as a scratch, permits the competitor to take the cue ball in hand and place it anywhere on the table.

plural of ball in hand

(military) A small hand-held explosive device designed to be thrown at an enemy. / (archaic) A fire grenade (kind of portable fire extinguisher).

(idiomatic) Any assistance, help or aid.