It’s when you take a girl with a ponytail, attach a suction dildo onto her forehead, put skittles in her mouth, and have her give you a blowjob.

You guys can then share the skittles after she finishes you off.
Me : “Hey you wanna give me a unicorn blowjob?”
Her : “Yeah sure, let’s both taste the rainbow
by Dus71n March 9, 2023
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Unicorn rainbow is when a boy cums onto your vagina and rubs it to your asshole
Wanna make a unicorn rainbow?
by FuckUpInTheSky March 28, 2016
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Country girl that loves riding and playing in mud but is a one of a kind,can't be found,rare.
That girl is the one shes country and rare, no dude that girl is a mudhole unicorn.
by Mudhole Queen May 15, 2022
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A person who is invited to be part of an established couple that is polyamorous and who is believed by the couple to be their unicorn (the mythical person who will complete a throuple), but who has ulterior motives to break up the couple and who is actually a home wrecker.
We thought we found the perfect person but she is a Trojan unicorn and stole my husband.
by Mateo_Harveez August 18, 2021
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The act of sticking the male genitalia inside the mouth of a Poopsie Slime Surprise toy and breaking your dick's crown.
John: "Did you hear that Henry got hospitalized? Apparently he got Unicorn Snapped."
Steve: "Yikes, that's gotta hurt."
by Incognito_420 February 24, 2021
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