Passing gas on a dance floor. Usually females, the dead giveaway is a momentary pause in their dance movement. They typically look down at their shoes and then up at the ceiling, or they look over one of their shoulders. Sometimes they'll smirk momentarily.

Extra credit: Walk up to the disco bomber, hold up your hand for a high five and yell "disco bomb!" if she meets you half way.

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.