Highly coveted morning sex performed by a male with a female partner. The Grand Slam must include the four specific sexual acts of analingus, cunnilingus, vaginal sex and anal sex.
Roger woke up at 4:30 a.m. And gave his girlfriend a nudge and then proceeded to warm her up for a Grand Slam Breakfast.
by Eaton Holgoode April 17, 2015

the act of one male inserting his testical into a females vagina, often done in the pile-driver position.
warning- only for the flexible
warning- only for the flexible
girl-"I want you to dip your balls in me"
guy-"No shit bitch thats called the nutsack slam dunk go look it up"
{does the nutsack slam dunk}
girl-"that was amazing you really know how to dunk those balls I think i-"
guy-"not now bitch, im in the fucking zone (continues to dunk while cutting her off in mid-sentance)"
guy-"No shit bitch thats called the nutsack slam dunk go look it up"
{does the nutsack slam dunk}
girl-"that was amazing you really know how to dunk those balls I think i-"
guy-"not now bitch, im in the fucking zone (continues to dunk while cutting her off in mid-sentance)"
by zohan pubes December 15, 2010

Bro 1: "So how'd it go with that chick last night, bro?"
Bro 2: "You know how it is, bro. After the bar, I took that hoe straight to slam central station!"
Bro 1: (nods in approval) "Respect."
Bro 2: "You know how it is, bro. After the bar, I took that hoe straight to slam central station!"
Bro 1: (nods in approval) "Respect."
by The Pete Jones November 24, 2013

When you go to Disney World and go to all four parks in one day, hitting all major attractions; starting at 9 am and ending at 1 am. This usually ends in massive pain in your legs due to all the walking.
by LaFleur818 August 26, 2011

The process of inviting a girl over to make a blanket fort and watch Disney movies with the ulterior motive of coitus.
by Icàrus November 18, 2013

"Dude check out those Slam-A-Licious Babes over there on that bench"
"THOSE ARE MEN!"
"Whatever deal with it."
"THOSE ARE MEN!"
"Whatever deal with it."
by Gerdemann25 August 4, 2007

One of those awesome grannies that gives you a shitload of cash everytime she visits. They were major ravers back in their day and they tell you all about it. They also let you get away with fucking everything!!
" My granny is a Slam-O-Gram she just gave me a fifty"
"Check the Slam-O-Gran playing the mean base"
"That's one wicked Slam-O-Gram, i hear she gives wicked pressies bitch!"
"Check the Slam-O-Gran playing the mean base"
"That's one wicked Slam-O-Gram, i hear she gives wicked pressies bitch!"
by The BGK King March 9, 2009
