The indentation in a woman's skin, usually below and between the breasts, made by a tight, underwire bra. This indentation can sometimes resemble a mustache.
I took my girl's bra off and couldn't help but laugh at her brastache!
The greatest band on earth. Originally started at American University, this band went on to an illustrious career including three grammys, 10 VMA awards, the Nobel Prize in astrophysics, and a nickelodeon kid's choice award.