bonytail 

A ponytail on a balding man. It can be viewed as a bad cross pollination between an ultimullet and a skullet. Very popular hairstyle in the 1980's.

Also, it is a species of endangered fish (Gila elegans). It is a rare minnow found in the Colorado River.

My bald old man has a bonytail down to his fatass.

bonytail by The 80's rock! June 11, 2006

bonytail 

A girl with no booty where her pants can barely stay on without the assistance of a belt.

The kind of bonytail that you don't bounching on your cock because it will be like fucking a wall

bonytail by KBCA February 12, 2007

bronytail

a ponytail sported by a bro. can be found on a bro who is drunk and belligerent on the streets, singing cypress hill's "hits from the bong".

Dude A: Check out the bronytail on that bro!
Dude B: Which bro?
Dude A: The one singing Cypress Hill's "Hits From The Bong"!

bronytail by Gianfilo April 24, 2008

bronytail

A makeshift pony tail composed from a result of unkempt neck hairs. A reverse neck beard.

Woman 1: Did you see the wild neck hairs on that guy?
Woman 2: Yeah, that dude was sporting a full on bronytail.

bronytail by starbursting August 9, 2014

Bronytail

A male ponytail

bronytail hairdoo hair bronitail

Bronytail by Drupaul January 26, 2015

Bronytail

The fear of male ponytails.

"I can't tell but does that guy have a Bronytail?...look now he just turned around!" "Ewww yes he does"

Bronytail by Drupaul December 31, 2013

Bonetail 

(n) the nickname you give your significant other when they have tailbone thats a little longer than normal.

I love my bonetail!

Bonetail by BooBear?Mofucka August 23, 2009