look up any word, like blumpkin:
 
4.
when your drunk and/or stupid date/girlfriend is giving a blond job to your geear shift while driving home, you simply grab her by the back of her clothes and put her in the proper place.
Chet - When I drove home last night, Betty was so plastered, she went down on the gear shift again!

Peter - Did you horse collar her this time?

Chet - Well... I got with Debbie back at the barn, but she didn't do a very good job, so, yeh, I horse collared her and made it right!

Peter - You are the man!
by Harry Day October 27, 2009
 
1.
A derogatory name for vagina coming from the similarity in shape.
I told you Matt wouldn't fight. He's too much of a horse collar.
by Caker May 02, 2006
 
2.
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 09, 2006
 
3.
Inserting penis into mouth of an unsuspecting victim, and then tightly wrapping one's legs around their head. Bonus points for performing while victim is standing up.
I horse collared Ed while he was sleeping, he woke up to quite a shock.
by Max Turtles September 11, 2010
 
5.
a vagina (either literally or in reference to a person)
Orlando Bloom is a huge horsecollar.
by Horsecollar Larry April 30, 2006
 
6.
After defecating in a toilet you grab your female/male companion and secure her/his head face down into the toilet and close the toilet seat while perform sexual acts in her anal cavity.
"Dude, I just horse collared my wife last night"
by JoJoTheMonk May 13, 2010