Someone that has a lot of street, like the latinamerican version of a chav. It also has a despective connotation since ñeros are stereotyped by being uneducated or vulgar. Mostly used in Colombia.

Ah, also, ñerO is masculine and ñerA is feminine. Pronounced like nih-eh-roh nih-eh-rsh respectively.

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