WATCH: Mystery solved as McCutchen explains secret behind hand gesture

Because this ranks right up there with how the Great Pyramid was built, the mystery behind the meaning of the Pittsburgh Pirates' hand gesture has finally been solved.

Pirates All-Star Andrew McCutchen finally spilled the beans when asked by a Pirates broadcaster during their "Twitter Tuesday" segment in which a fan's question gets relayed to a player.

The Pirates have gone all season without divulging the origination of the hand signal they make after a player gets on base. Until now.

And how many guesses would you have needed to come up with Dmitri Young.

Confused? Allow Cutch to explain:

(h/t SB Nation)