Kick in the teeth noun phrase informal
Being treated badly and unfairly by someone, especially when you trust them and need their help
I trusted him with all my heart but in the end he betrayed me. It was a real kick in the teeth.
I tried my best to devote myself to this job but the company decided to fire me despite my efforts. It was a kick in the teeth.
A bad- tempered person
To be treated unfairly in a deal, resulting in a disadvantage or burden; to be treated unfairly in some way.
This idiom was originated by the English in the 18th century, related to the pain of being kicked.
To be outperformed or outrun by someone, usually by a very wide margin.
You have to be quicker to finish this task or you will eat other my dust.