When one pulls a stunt that shows he has outdone others and retains complete control of the situation, and dares anyone to challenge this.

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

An action that asserts dominance over someone or reverts a perceived power dynamic without causing any real harm

n. an aggressive driving maneuver designed to gain an advantage in traffic, often enraging the other drivers.

An outstanding move that can be risky but results in a great reward.

when a guy pushes his girlfriend's head down towards his own crotch as a subtle hint for a bj

A move which requires you to inject yourself upon a situation as to inconvenience everyone else involved, or to show your power over the situation. Especially when not required.