A horn is a person (generaly male) who is obsessed with fucking and never shuts the fuck up about sex. Also he may talk about how great he is in bed yet they have only fucked 1 or 2 chicks.
Billy: Hey, my friend Alex Chisamore friend is a total dolt man. He says he's the BEST in bed with all of his ho's.

Bob: No, man that tool is just a total horndog.
by NikotheG August 3, 2009
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an extremely horny, perverted person who masturbates all the time and isn't afraid to say it.
That Emilie, what a horndog she gets jiggy with herself all the time!
by monkay March 21, 2007
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A bunny on viagra who just can't seem to get enough lurvin'.
Cindy and Trey AKA Blow and Job AKA The two most horniest people that i HAVE EVER MET IN MY ENTIRE LIFE.
by Poco November 2, 2004
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A negative name for a man who is sexually rude to a girl, or is being inappropriate about/towards a girl, Another term would be perv or pervert
girl: he's such a horndog!!
girl 2: i know, he's sooooo gross!!!
by Carlos Walker March 27, 2008
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A girl who is always "dogging for horn" i.e. trying to get laid
Whose horn were you dogging for last night? Horndog!

by lisamcnamara July 18, 2006
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The act of constantly staring at women and commenting on their level of attractivness.
Man, Brian White was looking this girl up and down and told me that she was so hot. He is such a horndog
by Brian White is a HornDog February 6, 2010
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“We’re texting rn and he’s making me horndogs.”
by Kg26 February 19, 2019
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