A position used in intercourse where the man will hill hold his partner upside down by the legs with his partners head on the bed. The man will then stick his penis into the girls vagina and make sex
Girl: oh my god Toby made me his jackhammer last night

Girl 2: oh I fucking love the jackhammer
by Tony fettuccine Linguini September 7, 2020
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A diagnosis given to males who are unable to connect with their partner on an emotional level during sexual intercourse, resulting in thrusting at a rapid pace in order to ejaculate.
He pounded me so hard last night that my pussy felt like a construction site; I think he might have jackhammer disorder.
by kmrtnz April 25, 2022
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To suck the toenail off a very beautiful female.
Yo Sam, I heard Johnny gave Alice the Ohio jackhammer. It was gnarly my guy.
by xX696969Xx June 11, 2018
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After a male and female have rough sexual intercourse, and the female's leg starts shaking and vibrating, thus not being able to walk.
Dude, I just gave her the Callahan Jackhammer and she won't be able to walk for a bit!
by Nutsnbutts October 11, 2022
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When jacking off you cannot bust and you begin to sweat and your arm begins to cramp and feels like you have been using a jackhammer for an hour
by BKing19 February 20, 2012
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