When a man has an extremely large boner and the female/male (depending on preferences) grabs the large boner and bends in a very obstructive fashion, which may lead to a crack in the pelvic area.
I was at my friends and he was having a very pleasurable dream and so i decided to give him the japanese whammy bar.
by 69 Baby Jesus 69 July 1, 2009

When near the end of doggystyle sexual intercourse the man ejaculates onto the woman's back while at the same time he blows snot out of both nostrils, usually one nostrol at a time and while exclaiming SHAMWOW!
Homie: "Fool I'm, stayin at home with my girl. This cold got my nose all clogged up"
Gangsta: "Dump that shit on yo ho son, I know she loves a good double whammy"
Gangsta: "Dump that shit on yo ho son, I know she loves a good double whammy"
by MC-B December 25, 2007

an occurrence that initially appears to be spontaneous but at second glance is in fact extensively and clandestinely premeditated.
by Fontrho December 9, 2008

To forcefully punch a female in the vagina with your middle knuckle raised as if you are giving a half middle finger.
by RaTeDr21 February 11, 2010

by whats the craft August 14, 2009

by AJJ304 October 29, 2008

“There’s 2 things you don’t want to be in this world , that’s gay and a snitch” Also known as a “Double Whammy”
by JakeThaDon April 25, 2020
