What is the meaning of Two-step?

A ballroom dance in duple time, having long, sliding steps.

A dance move consisting of two steps in approximately the same direction onto the same foot, separated by a joining or uniting step with the other foot.

A piece of music for this dance.

Used other than figuratively or idiomatically: see two, step.

To dance the two-step.

To move around as if dancing a two-step.

Source: wiktionary.org