What is the meaning of Strapping?

present participle and gerund of strap

Having a sturdy muscular physique; robust.

Of a young woman: full of vigor; lusty.

Adhesive plaster for strapping injuries.

A length of narrow material to be used for straps, or straps collectively.

A beating with a strap.

The act of fastening with a strap.

Source: wiktionary.org