A Dinner Dog is the sort of guy who will cut a man's grass without care or consideration. The term can also be applied to anyone who eats food, typically a dinner, belonging to or designated for consumption by another person.

A dog that will provide just enough meat to comfortably serve one.

Examples are chihuahuas, the 'toy' group, and most terriers.

Slang word for dinner ladies who come round the forms inspecting.

British expression:
1) a mess; a clusterfuck; synonymous with dog's breakfast
2) dressed up, usually excessively; gussied up. Usually derogatory.

A Dog Dinner is a dinner party where a group of men assemble and bring the ugliest dates they can muster.

The one who brings the ugliest date receives a prize.

A very mean trick often played by Frat Boys and Financial Industry scumbags.

A mess, a fiasco. British.

Dog's dinner is describing you as looking bad but in reality you are being called bacon and sausage so it's a compliment