My daughter is very candid and open with me, but my son is a hard nut to crack.
The idiom "a nut to crack" has the basic meaning of "a problem to solve." Some "nuts" are hard to "crack," while others are easy, but this can only be determined by context.
adamant wife!
She is a tough nut-hard to crack
only if it falls on it really hard
chicken flavoer G
Can't God crack all nuts?
means something is really hard it came from 1700 march 19 the army wanted to think of a fun word also they struggled on stuff sothey made up hard nut to crack.
Crack My Nut was created in 1987.
It can mean that something is difficult or that a person is stubborn.
It means that you have to do the hard work before you can enjoy the rewards.
a hard nut, a hard nut to crack, a hard row to hoe, a tough cookie, a tough nut, a tough row to hoe, be as tough as old boots, tough as an old boot, tough as nails, tough cookie, tough customer