"I'm Bringin' My Muffin Through a Dimensional Portal" is a short tune sung by the 2nd Dimension Doofenshmirtz as he makes his way through a dimensional portal to the first dimension with the intent of conquering it. The song is sung at the start of the 8th level in the game Phineas and Ferb The Movie Game: The Dimension of Doooom!.
I'm bringin' my muffin through a dimensional portal.
You can laugh if you want to, as long as you don't chortle.
Cause I'm still not sure what kind of laugh chortles are.
I know from guffaws. I know hardy har hars.
But a chortle sounds kinda unpleasant to this here mortal!
Yes I'm bringin' my muffin through a dimensional portal