The act of watching video footage or witnessing vehicles that are equipped with train horns and watching videos of them in action.
Yo look at that honduhh scaring the crap out of the people in the parking garage!! That's horn porn right there!
by danwat1234 September 14, 2011
Man I got home so late last night and all I wanted to do was watch some tv, but there was nothing on except for fuckin horn porn commercials.
by Ebok8 June 19, 2009
"OMF that new song by unicorn horn porn is badass"
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by Acending apocolypse December 22, 2016
In the second scene of the XXX-rated movie, the skank was definitely giving her all, even though she was choking on the porn horn.
by pornhorn50 January 14, 2010
by Wayde Munn July 27, 2003