inside-the-park home run 

The baseball themed innuendo equivalent to rape.

Bro #1: "Dude I totally ended last night with an Inside-the-park Home run."
Bro #2: "Isn't that illegal?"
Bro #1: "Not when the catcher's drunk!"
Bro #2: "Chyeah, brah!"

inside-the-park home run by heyguyzzz January 27, 2011

Inside-the-park home run 

Doing a #2 in a public urinal.

From American Dad, season 12, episode 20, "Gift Me Liberty":
Stan: "I know you're hiding sonething!"
Dick: "(Sobs.) OK! OK! I'm the one taking dumps in the urinals. I call them 'inside-the-park home run'."

Inside-the-park home run by Kefteniglo February 14, 2017

Inside the park home run

Having sexual relations in the bathroom of a bar. Called the inside the park home run because you're hooking up right there and then in the bar, whilst saving yourself the trouble of traveling to the others domicile.

"Damn! Did you hear Jerry hit an inside the park home run with that chick he just met over there on the dance floor?!"

Inside the park home run by Trouserboy69 April 13, 2009

inside the park home run

An inside the park home run is incest.

When Cletus told us he'd scored an inside the park home run, we knew his sister "Ugly Jane" had lost her virginity.

inside the park home run by scodder May 16, 2010

inside the park home run

When the chick you initially thought would ask you to pull out allows you to jizz inside her.

Oh yeahhhh...last night her Ludwig was so tight and I even hit an inside the park home run!

inside the park home run by danman1202 June 22, 2008

inside the park home run

To successfully have sexual intercourse with your own sister.

Billy hit an inside the park home run last night, and now his mother is mortified.

inside the park home run by McCock, the Crime Dick August 8, 2007

Inside the park home run

When you take a crap in the urinal. Not to be confused with the "upper decker"

Dick hit an inside the park home run.

Inside the park home run by Allister Smith December 28, 2019