What is the meaning of Straggler?

A person who straggles, or departs from the direct or proper course, or from the company to which they belong.

One who falls behind the rest, for example in a race.

One who roams without any settled direction.

A migratory animal found away from its usual range.

A roving vagabond.

Something that shoots, or spreads out, beyond the rest, or too far; an exuberant growth.

Something that stands alone or by itself.

Source: wiktionary.org