What is the meaning of Bondage?

The state of being enslaved or the practice of slavery.

The state of lacking freedom; constraint.

The practice of physically restraining people for sexual pleasure, such as by tying up or shackling.

Applied to clothing with many buckles, zips, etc., associated with punk and goth subcultures.

bondage (BDSM sexual practice involving physical restraining)

bondage (sexual practice)

bondage (sexual practice)

Source: wiktionary.org