Grand slam

When you pull your penis as far back between your butt cheeks(chicken in the rough), and put it against a window to surprise someone

When i opened the blinds my brother surprised me with the grand slam!🍆🍑

by Joe cock February 22, 2017

Grand slam

A highly prestigious award given to the team who finishes UNDEFEATED in the 6 nations rugby championship. In other words, NO TEAM COULD BEAT THEM, THEY WERE TOO GOOD FOR ANYONE, NO-ONE COULD MATCH THEM FOR CLASS, SKILL, FINESSE, PACE, AGILITY, PASSION AND SHEER BRILLIANCE.

Wales won the GRAND SLAM after kicking everyone elses arse.

by God HelpEnglandInTwickenham June 23, 2005

Grand slam

During intercourse, one takes out a baseball bat and rams it into the anus, ad=nd when the bitch screams, take it out and knock her ass out.

I gave my grandma the grand slam yesterday.

by billy bob February 06, 2003

grand-slamming

Nailing someone in a Denny's bathroom. Bonus points if hash browns are involved.

Grand-slamming marialuvr01 yesterday was the best.

by forcameron September 19, 2009

Grand Slam

When a guy receives a hand job, blow job, & get's to fuck a pussy and anus all in the same night

Jake : Wow there is nothing on tv tonight I'm so bored!
Kiersten : Well how about I tickle your balls, tug & squeeze your dick slobber all over it then you can stick it in my pussy & anus and fill me up with your warm sticky love goo!
Jake : O God Damn!
Kiersten : Oh yes you will score a Grand Slam now drop your drawers big boy!
Jake : Woooo! Play Ball!

by SlopNChop December 10, 2017

Grand Slam

Fucking in a Denny's, usually in the bathroom.

"She and I had a Grand Slam. Oh, we ordered it, too."

by Missynoob October 04, 2012

grand slam

actually fucking dying from alcohol/drugs

Tad: dude i think Chad hit a fucking grand slam!
Brad: should we take him to the hospital?
Tad: nahhh, let him enjoy it, it might have just been a home run
RIP Chad

by ongekyume September 16, 2019