A Welsh mythological creature similar to a magpie. It has a singular horn like claw, which it uses to steal the eyeballs of unaware passersby; which it then uses for sustenance.
by WelshCyclops February 27, 2016

by BoxToTheLeft October 10, 2013

A large, sweaty, over aggressive chick that flirts with the bisexual line in an uncomfortable manner that makes heterosexual females uncomfortable.
The swamp unicorn would not leave my new gf. Alone
That swamp unicorn just asked Michelle out to dinner.
That swamp unicorn just asked Michelle out to dinner.
by Doxa3 May 11, 2018

by Horsecxxcxk February 10, 2022

by Much ado December 2, 2016

A sex act that involves strapping a dildo to one's forehead and then using said dildo to perform anal sex on a partner. Sometimes refers only to the male-on-male act.
I'm excited that I finally get to stash the unicorn with Matt!
I woke up with a sore neck after spending all night stashing the unicorn.
I woke up with a sore neck after spending all night stashing the unicorn.
by killedbydysentery May 31, 2015

A person who is normal person that surprisingly hasn't done anything. No drinking, drugs, boyfriend, sex, or even in some circumstances, kiss.
by UNI1234 June 29, 2012
