Dog fat

Adjective.

Any item (but especially food) that is purchased and found to be substandard to the point where it makes the buyer wonder whether it contains next door's rendered down Rover.

Don't go buying me that dog fat chocolate again and claiming it's as good as CDM.

I thought this shirt I got was quality, but it's proper dog fat. It came apart when I washed it.

Fat dog it

A popular saying that you have heard for your entire life.

Don’t sweat it, fat dog it. lay down in the sun and relax, like a fat dog.