*If you don't understand the parody, watch "Abbot and Costello's "Who's on First?" skit via YouTube or other source.*

Twilight Sparkle: Hooves on first.
Pinkie Pie: Hooves on first?
Twilight Sparkle: Yes, hooves on first.
Pinkie Pie: Whose hooves on first?
Twilight Sparkle: My hooves on first.
Pinkie Pie: MY hooves on first?
Twilight Sparkle: No, my  hooves on first.
Applejack: What's on second?
Twilight Sparkle: Mane's on second.
Applejack: How the hay can you put mane on second when you haven't even put the head on first?
Twilight Sparkle: Hooves on first, Applejack.
Rainbow Dash: Doesn't the head go on first?
Twilight Sparkle: Hooves on first, Rainbow Dash.
Fluttershy: What's on third?
Twilight Sparkle: Tail's on third.
Rainbow Dash: Head on first, mane on 2nd, tail on 3rd?
Twilight Sparkle: That's right.
Applejack: Where does the body go?
Twilight Sparkle: Body on 4th.
Pinkie Pie: How does hooves on first, mane on 2nd, tail on third and body on 4th make a pony?
Twilight Sparkle: They don't make a pony, they ARE ponies named Hooves, Mane, Tail and Body