Top definition
The grand slammer is when you do a line of coke off a girls belly, kiss the girl, take a bong rip, take two syringes full of tequila then make out with a second girl and she slips a ecstasy pill from her mouth to yours. Then you die.
Yo man! Nick just did the grand slammer, his buddies had to take him to the hospital.
by Mickey dog November 20, 2014
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