What does Boobstache Boobstache mean?

Boobstache Boobstache meaning in Urban Dictionary

You know that perspiration stain that women get under their boobs? The sweat pours down the main boob channel, and out of the edges within the underboob regions - thus forming the sweatstain by means of a mustache... aka, the Boobstache. Chest locks on a person (and maybe some females).