Listen to the sound clip Boo. from My Little Pony: Friendship Is Magic Soundboard: Boo. Boo. This sound is from My Little Pony: Friendship Is Magic Soundboard My Little Pony: Friendship Is Magic Soundboard #never too old for free candy #pinkie pie #mlp #my little pony #hasbro #trick or treat #halloween Go to the full soundboardwith more sound clips Search