Inserting ones rather large manhood into a women's vagina.
Oliver; "Mate, I really fancy that bird"
Chun; "Why don't you just horse one in?"
by charlialexander January 27, 2009
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A phrase used by senile people confused thinking of the more common phrase "one trick pony".
*Replying to press after reporter asks if allegations against Hunter Biden are Russian disinformation:

"Yes, yes, yes. God love you, man. You're a one horse pony."
by senior jota December 23, 2020
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One horse pony is a term commonly used by old fools that can't complete a sentence without soiling themselves.
by One horse pony December 23, 2020
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Someone who is probably smarter than Joe Biden
Joe Biden: Yes, yes, and yes. God love you man, you’re a one horse pony. Thank you!
by neverwrittenword December 23, 2020
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You meant to say ONE HORSE SHOW, ONE TRICK PONY or ONE HORSE SALLY but your memory is failing you so you just make words up, like ONE HORSE PONY
Yes, Yes, Yes. God loves ya man, you're a one horse pony
by Natosuperman December 23, 2020
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One horse pony: A term commonly used by old fools that can't complete a sentence without soiling themselves.
C'mon man, you're a one horse pony. You dog faced pony soldier!
by One horse pony December 23, 2020
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