It is a person who constantly steels another persons items unknowingly.
"Willma, quit jacking my lighter, you damn Pirate Monkey!"
Having an orgy with some random girl drunk on a porch, in the rain while playing the banjo.
First person : dude! I was so trashed last night, I ended up porch fucking this chick last night.
Second person: Oh, how was it!
First person: don't know, But I woke up with the banjo and a bottle of KY jelly.