It used to be in the Navy traditions book, but has gone away along with son of a gun, show a leg and Bitter end... No traditions left anymore.. Anyway it was sort of a Destroyerman's phrase.. Big deck sailors would never have ocassion to hear of it. Another great one refering to High speed "runnin with a bone in her teeth" which refers to the white curling wake off the bow of a destroyer at high speed.