tough nut to crack

Something or some situation very difficult to deal with satisfactorily. You may use just 'tough nut' too.

Property division is a tough nut to crack in divorce.
Iraq has become a tough nut for the U.S. government.

by João Rodegheri November 11, 2008

tough crack to nut

an extremely attractive woman that no guy can score with

“Yeah, she’s as hot as a firecracker but you’d better forget it, pal. That’s a tough crack to nut.”

by goose_on_a_roof June 5, 2022

A tough crack to nut

A female that is difficult to seduce

Brenda is beautiful and we had a wonderful time, but she's a tough crack to nut.

by Gekko!!! March 27, 2017