He is a pony of few words and, like the rest of his family, he speaks with a Missouri Ozarks-like accent.He tends to answer questions or reaffirm things with a taciturn "eeeyup" or "nnope".
With the encouragement of their new friend, it soon becomes unclear how far the girls are willing to go to experience a spring break they will never forget. It is not controversial, racy, or thought- provoking. It isn't that I do not like controversial, bad-ass, or vulgar films..
During some shots in Friendship is Magic, part 1, Winter Wrap Up, Sisterhooves Social, MMMystery on the Friendship Express, Spike at Your Service, Just for Sidekicks, and Magical Mystery Cure, his cutie mark is depicted with six-pointed white stars around the apple which are not present in most of the show's shots or in the toy line; an image from the development of the mobile game states that stars are not part of his cutie mark design.
Faust noted in a comment on her Deviant Art page that an idea for a Big Mc Intosh-centered episode was pitched to Hasbro but was turned down.
Big Mac has a close bond with his sisters and cherishes his relationships with them.
In The Last Roundup, he tears up when he learns that Applejack has decided not to return to Ponyville.