Blue Unicorn 

The spread of blue balls to the schlong starting at the base and moving slowly towards the tip.

"how was that girl last night?"
"it was good, but she left me with a blue unicorn"

Blue Unicorn by Had-One-Once April 20, 2009

blue room unicorn 

When you open a porta potty door, and someone shit on the lid of the toilet. you make the same face you would if you saw a unicorn.

Hey Vic, did you see the glorious blue room unicorn in shitter 3?

blue room unicorn by FracStrike September 18, 2017

Blue Collar Unicorn 

A lady that works a blue collar job. Often beautiful, but will outwork the men around her.

I work with a Blue Collar Unicorn... She used to be a cheerleader but now she can lay a perfect weld.

Blue Collar Unicorn by Puddinpop98 October 11, 2023