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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A subjective personality type where the individual looks boring, plain (and even unappealing) on the outside even when they try to put a fun spin on themselves (usually because they try too hard to be likable), then when you crack them open (depending on your personality type) you realize... they are actually a pretty gross on the inside. However there are other people who do like them a LOT for whatever reason (dogs), these individuals tend to flock to them immediately, either in defense of them or to basically eat them up, often offering some of the person's bullshit up to others who usually tell them either, 'I'm good' or 'eww, gross', to which they immediately take offense.
Dude, you should watch the Legend of Korra it is SO amazing.

Nah, Korra has a personality like a 'can of dog food'

Man, f*ck you, bro! Korra is awesome!
by Muttemor May 3, 2021
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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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An expression used when some one fucks up, really badly.
"Did you hear about Ethan crashing his car?"
"Yeah, he really gave the dog cat food."
by Side Biscuit November 3, 2015
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The act of secretly parking in a car park to eat fast food before going home.
Fast Food Dogging is the act of stopping off to eat a McDonald's on the way home in a secluded car park in January because your supposed to be on a diet.
by Big Pete78 January 18, 2013
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From a woman.... I love you more than anything...
From a Man...... I love you sooo much that I thought of this wonderful thing to say to you...
Hey Baby I love you so much!
How Much?
I love you more than a dog loves people food!
by Youronetruelove April 29, 2007
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(noun) A dog who's primary motivation in life is eating people food from the table. Food dogs are typically fixed and have owners with bad habits of feeding them. Almost 100% of beagles are food dogs.
"Fido is kind of just a food dog now that he's fixed. He doesn't need to impress the ladies so hes always under my feet at the table"
by sulungskwa November 4, 2019
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