Going so deep in a pussy that it feels like a unicorn's horn is penetrating your ovaries whilst preforming an aggressive rainbow queef.
Fred: Man, I think Stacey is going to brake up with me.
Jo: What!?! Why?!yy
Fred: Well... I was having sex with her for the first time and... I... Have a big... Cock and I went unicorn deep. She still can't walk dude.
Jo: What!?! Why?!yy
Fred: Well... I was having sex with her for the first time and... I... Have a big... Cock and I went unicorn deep. She still can't walk dude.
by Rybuscle December 26, 2014

To have sexual intercourse with someone who is a 10 on the attractive scale when you yourself are a 5 or lower
by Swiggster23 January 27, 2015

Cheesey offerings made with smelly white stuff from the unicorns own sweaty bits... Fake gifts given by nasty unicorns....
by Piskey Ed June 1, 2021

one will lie down and their partner will shit on their forehead trying to make it stand looking like a horn
Tim lay down while goggles stood a fresh steaming log on his head.
This was the act of the German Unicorn
He had a 2nd one in the chamber tuning him into a mutated Nazi unicorn
This was the act of the German Unicorn
He had a 2nd one in the chamber tuning him into a mutated Nazi unicorn
by Tim Y June 4, 2017

The definition straight unicorn means, the act or talking around in a crazy fashion while being naked and have a raging boner.
by mickdoodlesby August 19, 2016

by NotDankquan February 21, 2019

by heyottokaiser October 26, 2012
