The fin created on one side of your hair/head when you vomit (boot) from drinking too much and then sleep in a pool of it. The fin formation is the result of it drying and creating the ultimate hair spiker.
Man, look at Tim—he's going to have a boot fin in the morning.
Is that hair mousse or a boot fin?
Yesterday I woke up with a boot fin and couldn't remember how I got it.
Is that hair mousse or a boot fin?
Yesterday I woke up with a boot fin and couldn't remember how I got it.
by dragon fan July 6, 2006

Fin again
by fin again barbie bin net February 2, 2021

by Noah.b April 23, 2018

by giganigashliga May 7, 2025

1) hey do you know phoenix/fin/phinix
2) Oh that fucking dumbass who knows nothing that black fishes and is a gayass?
2) Oh that fucking dumbass who knows nothing that black fishes and is a gayass?
by hdhgd January 26, 2022

When a man sprinkles a pinch of sea salt on the tip of his penis and penetrates the vagina with incredible force.
by dickalmondtits February 2, 2016
