In baseball, a hit in which the batter is able to circle all the bases, ending at home plate and scoring a run himself (along with a run scored by each runner who was already on base), with no errors by the defensive team on the play which result in the batter advancing for extra bases.
a base hit on which the batter scores a run
something that exactly succeeds in achieving its goal; "the new advertising campaign was a bell ringer"; "scored a bull''s eye"; "hit the mark"; "the president''s speech was a home run"
something that exactly succeeds in achieving its goal