When a man spreads the woman's vagina flaps and attempts to stick his head into it. This normally ends up with a trip to the ER as it is not safe for both genders. This can be done with the same sex (see Finnish jackhammer).
by The isis November 13, 2014
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
After a male and female have rough sexual intercourse, and the female's leg starts shaking and vibrating, thus not being able to walk.
by Nutsnbutts October 11, 2022
by anra999 June 30, 2022
by xX696969Xx June 11, 2018
Shari had COVID and was complaining about her sore throat so Darko got out his salami stick and gave her a Serbian jackhammer 🤣
by The real Don drizzle May 25, 2022
A sexual act involving 4 people. A man gets his legs held above him by two (2) people and held apart, in a "V" shape. A fourth person is then helped in between the man's legs and his balls are then used as a trampoline until he cums.
Mike: Yo, Steven. I heard that Stacey gave you the Jamaican Jackhammer last weekend
Steven: Yes mate, I've been in intensive care cos Kate and her sister held my legs open and Stacey weighs 250kg
Steven: Yes mate, I've been in intensive care cos Kate and her sister held my legs open and Stacey weighs 250kg
by Steven Skibidoviç September 21, 2024