Definition
A smirk is a smug, conceited, or self-satisfied smile. It often suggests arrogance, slyness, or secret amusement. It's not a genuine expression of happiness, but rather a way of showing superiority or knowing something others don't. Think of it as a smile that says, 'I'm better than you' or 'I know something you don't.' A smirk can be subtle or pronounced, but it always carries a hint of arrogance. It's often perceived as irritating.