slugging percentageslug·ging percentage
Baseball a number expressing a player's average effectiveness in making extra-base hits, calculated by dividing the total number of bases (from all singles, doubles, triples, and home runs) by the number of official at bats
also slugging average
A player's total number of bases reached on hits divided by official at bats, expressed as a three-digit decimal and used as a measure of batting power. Also called slugging average.