When having sex with a women in the standing position, at the moment of orgasm, the woman is piledriven into the floor.
After I gave ol' Nicki the walla walla sledgehammer, I finished her off by supermanning all over her face, and made her fruitbowl me.
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when a short redhead uses a fat girls stomach as a trampoline, and he jumps up, does a backflip, and lands on his stomach with his doinker in her hoo-hah
Fred: Man, Patrick o'neil o'harris mckinley really gave susy the old irish sledgehammer last night?
George: yeah, and im pretty sure it found its way to youtube.
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When a sledgehammer is swung willy nilly like towards the genitals of another person.
"Hey did you hear about Wilcox? He took a sledgehammer to the coin machine."
"Really? He must have been in Florida."
when getting to a climax during anal sex, the male pulls outs and runs directly towards the female's face. He then proceeds to jump in the air, do a 360, and smash his partner's cheek with his dick so hard that her face craters into the mattress, hence the term "sledgehammer". The male also ejaculates during the sin so it gives an extra sloppiness to the hit. Enjoyable for both participants.
Guy 1: Bro she was so bored with me until I gave her the Norwegian Sledgehammer. We're getting married in August.
Guy 2: Whoa, congrats, man!
a boob that is so big that it takes two hands to fondle it.
The actress has sledgehammer boobs, which are her saving grace.
When a man with a larger penis slams his dick down onto a woman's face during sex
When me and my girl where getting it on i gave her the sledgehammer
When a man finds a woman very attractive, to the point that he winds up having an erection.
She's very pretty. Now I need a sledgehammer.