A crisp one - A $100 bill. The only thing that can make you forget about y

A $100 bill. The only thing that can make you forget about your bad grades.

I got a crisp one from my dad after I failed math but aced gym.

My mom gave me a crisp one because I got a D but got a perfect score on the art test.

I got a crisp one after I told my teacher my dog ate my homework.