in one's back pocket
/ən wʌnz bax ˈpɑ.kət/
secretly held or reserved for later
“He had a backup plan in his back pocket for emergencies.”Add to my deck
/ən wʌnz bax ˈpɑ.kət/
secretly held or reserved for later
“He had a backup plan in his back pocket for emergencies.”Add to my deck