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!