Question

complete the idiom have all the facts on his......... ​

Answer 1

Answer:

The complete idiom is:

Have all the facts on his fingers.

Explanation:

• This idiom means to remember something by heart and to be quite good at it.
• when someone says that they have facts on his fingers that means that they know all the facts like they are written on the books.  
• An idiom is a phrase that is used figuratively.