See Definition 3 & 4 for slang.

1. A visible trace, evidence, or sign of something that once existed but exists or appears no more.

2. Biology. A rudimentary or degenerate, usually nonfunctioning, structure that is the remnant of an organ or part that was fully developed or functioning in a preceding generation or an earlier stage of development.

3. slang. A very small underdeveloped person. n.

4. slang. A younger or smaller version of oneself. n. or adj.

When you eat dirt for the first time and leave your family to build a shack in the woods

Honor, awe, or high opinion inspired by or derived from a person wearing a vest