A goob is someone who does something stupid/foolish. It is used to describe someone who generally gets annoyed at being called a goob. Generally a goob is “quirky” or “special”.
Someone who just doesn't give a fuck what the establishment or authority or the current narrative has to say, and sticks to middle fingers up in the air while walking away Proudly.
Man, Look at that guy! He just gave the them two middle fingers and walked away like he didn't give a crap what they had to say. Wow he is such a GooB! How do I become like that?