Nim: My friend said it's okay for Christians to sin because God's forgiveness is like a free pass to do whatever you want.
Abby: Your friend is wrong. And if he thinks that way, he might not have sincerely accepted Christ.
Nim: It's funny. That's EXACTLY what I told him! Actually, I just said "Shut up, you pootyhead!" But the gist was the same as what you said.

God's forgiveness through Christ isn't a "Get out of Jail Free" card for us.