A Southern slang term for vagina (due to its visual resemblance in iron form), usually used in reference to a girlfriend or a big vagina, either literally or referring to a really girly guy.
Orlando Bloom is a such a horsecollar.
by C. Friedman May 17, 2006
Get the horsecollarmug. Orlando Bloom is a huge horsecollar.
by Horsecollar Larry May 11, 2006
Get the horsecollarmug.