to have nothing on somebody
01
***to have no advantage over (someone) : to not be better than (someone)
例
She is very talented but has nothing on her brother who is an even better singer.
She ’s got nothing on you when it comes to writing.
02
***to have no decisive incriminating evidence against someone; to have no proof of wrongdoing or criminality about someone
例
The police can insinuate all they want, but they know they have nothing on me.
You call that mercy? They had nothing on you, otherwise you would n't be here right now.
03
***to have no information available about someone or something
例
I got this history book for my report, but it has nothing on the topic I want to write about!
