Where a couple starts having sex in the classic doggy position; then when he is ready to spit seed, he dismounts, leaps onto the woman's head and shoots for distance as she rears up.
Last night I performed the Rearing Unicorn on my wife.
by Prometheus69 December 17, 2010
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A man performing anal sex with his wife, while she is in the reverse cowgirl position and without it having to be his birthday. Very mystic ,mythical and rare!
"Dude, how was your weekend?"

"Awesome! Had sex with the Wife and finished her off with the
Rear Naked Unicorn!"
by GeoGuyofSanPedro August 23, 2010
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