a nicer, politer, and above all quicker way of telling someone, in that order, to "shut up, get lost, and mind their own business"
two people are in a private conversation and a third person butts in:

person 1 (adressing person 3): who exactly are you and what do you want? and why did you interrupt our conversation anyways?

person 2 (adressing person 3): yo man, sorry, but you are not part of this PC (private conversation). please eat your own cheese and shove off, before we get angry, all right?
by Sexydimma January 29, 2012
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To admit your wrong, hold yourself accountable, and accept whatever consequences that may come with it.

From the movie "Thinner"

Tadzu Lempke: Gives the "White man from town" a pie that can potentially lift the curse he has put on him. (*Note* The Pie doesn't actually "lift the curse per`se" but passes it along causing a vexing but rapid death to whoever consumes it)

White Man From Town: Accepts the pie

Tadzu Lempke: "Eat Your Own Pie" and die clean, die clean White man from town; die clean.
Trump could easily "Eat His Own Pie" and end all the investigations against him for the vile, wretched, and abhorrent existence he's defiled the planet with, but instead he will lie, deceive, and prevaricate to the very end until he's painted himself into a corner he has no way out of; in which case per the blessing and demand of the vast majority of the American people Robert Mueller will shove his pie down his throat.

However it happens you will Eat Your Own Pie Trump!
by NikkiTikkiTavi February 7, 2019
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To use one's own product or service. Originally applied to software companies using their own software in-house, the meaning can extend to any situation that might impose some burden on customers, clientele, constituency, co-workers, etc.
Sen. Chuck Grassley (R-IA) proposed an amendment requiring members of Congress and their staffs to buy health insurance on the exchanges they are setting up, forcing lawmakers to get insurance the same way some of their constituents will. In some circles, this is known as "eating your own dog food."

-- from electoral-vote.com, 14 Oct 2009

A (historical) example of -not- eating your own dog food would be Microsoft developers using IBM's OS/2 operating system while developing Windows software because it was more stable than their own operating system (Windows 3.1 and Windows 95 at the time).
by jevanyn October 14, 2009
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someone who plays brawl stars and wants to fuck the girls in the game
Mr P: "There goes a man who will eat his own nuts."
Mr S: " Golly you're right, it's your DAD!"
by hyperpornstardicksexwithdillpi February 16, 2020
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This is a fairly new expression used in business and it means that we do what we say you should do.
If we teach that you should create a business plan each year and we follow our own teachings; then "we eat our own dog-food."
by USL Top Dog November 16, 2010
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A very good phrase to use when you dont want to do something
Person one: Hey will you go out with me?

Person two: Ummm well to be quite honest with you i would rather eat my own toe!
by Tom Griffiths February 24, 2008
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