bronytail Share definition Flag 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 Get the bronytail mug.