informal to not have any chance of doing something that you want to do.
He hasn't a dog's chance of getting that job.
(usually + of + doing something)
have a dog's chance
To have a very slim chance. This phrase is to describe something that is unlikely to happen. Considering you only studied for 10 minutes, you have a dog's chance of passing this test!I get really nervous when I present something to the boss, so I think I only have a dog's chance of impressing her today.