A description of someone's overly large or frighteningly above average penis. It is in relation to a horses penis.
Jessipher Bagelnuts has a horse penis

Hows that horse penis Jessipher?

Jessiphers horse penis
by jjojo May 16, 2005
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A simple form of greeting used between 2 men or a man to a woman. can also be used as an ice breaker.
1. man 1- good day sir
man 2- and a floppy horse penis to you too sir.

2. man- *grabs womans boob*
woman- and a flopppy horse penis to you too sir

3. so how about that floppy horse penis today?
by mattbrandyjay February 21, 2009
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A man with the dick the size of a small elephant, usually tries to brag, and man has yet to create a condom to fit the summer sausage.
Tony: Dude did you fuck her??

Sam: Well kinda...

Tony: What do you mean?

Sam: Well, first the X-L condom only went half way down my cock, then.. My dick was just to big to fit.

Tony: Bull shit.

Harold- man i was playin with myself and realized.. ive got a penis like decker! Deckers horse penis is huge
by afi GR October 19, 2010
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When i was watching porn i saw this black dude with like a 4 foot dick and it wasn't even hard. this girl tried to suck it and she could only fit the head in her mouth. I call him race horse penis man
girl-I tried to fuck him but only the head fit. that's why he is race horse penis man
by Juliah Harold December 13, 2007
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