The unfortunate result of having fine hair where there is no volume at the roots but an abundance of volume/frizz as the hair goes on, resulting in a triangular hair shape.
Girl, I need to deep condition and get this hair cut, I have a bad case of triangle hair!
When your friend Remy has hair that sticks up in a triangle fashion, usually Remys can be found following lost orange kibbies around the neighbourhood, as well as shitting, cumming, and twerking in public places
Me: "oh my god, have you seen Remy's triangle hair"
Destiny: "rock on! im a gamer and play rock band"