What is don't be a debbie?

Once upon a time a drunk girl name Debbie who was my brothers friend was in my house she loved oreos and was eating away I wanted oreos so I took the pack away she was yelling for me to give them back and in joking manner I said only if you give me a blowjob immediately she said ok and so she gave me a blowjob.

Basically don't be a Debbie means don't be a whore or slut whatever name you please.