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1. To pull up something, especially an item of clothing: I keep hitching up my pants because I forgot to wear a belt today. The pioneers hitched their pantlegs up and crossed the creek.
2. To attach something or someone to something or someone else with a hitch: I hitched up the trailer to the car. They hitched the horses up to the wagon.
3. Slang To marry: They hitched up last month in Las Vegas.