idioms are the spice of the language American, English idioms are fun. Many of them refer to sports, Go get 'em.( go after your desire) the 'em is short for them You killed it.....You did very well. Hurry up.Your in the last lap......Your almost done finish up. We're in the bottom of the 9th. We are almost done.....baseball analogy. Don't count your chickens before they hatch.... A bird in the hand is worth 2 in the bush. One of my favorites colloquall saying is: That dog don't bark......Yes don't should be doesn't .....it means that individual isnt making good sense with what he is doing.