To get rid of or give up on something or someone without their knowledge or consent probably when you are tired of that thing or person

Run away from, abandon, someone/a situation, usually not a good thing. Usually without one's knowledge.

Not sticking to the original plans you had already made with someone.

Someone who is a dick and a bitch

Auto correct for Bitch

Skipping from school / not going in to school

A combined of a dick and a bitch