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1.
The Best friend who tags along with her friend and her boyfriend. The female form of cock blocking.
If you and you boyfriend are going, I don't want to bitch hitch.

Sally keeps bitch hitching every time we go to have sex.
by TallonWarrior August 26, 2007
 
2.
a belly button ring. When they are worn in the normal fashion they will sometimes get caught on things, things such as mens clothing when they are dirty dancing. Then they get painfully pulled around like a trailer, hence; bitch hitch.

Also, generally is a tell tail to the type of girl she is, similar to the tramp stamp, and tongue rings. It generally means the woman in question puts out.
I am glad Susie took her bitch hitch out, I never liked that look.
by Captain Awesome October 13, 2007