Variation on upper decker. Instead of shitting in the tank of a toilet, shitting in the bowl and then manually repositioning the load to the tank.
I was so drunk I forgot to do an upper decker, but after I saw the sweet log I fired into the bowl I knew I had to go for the ground rule double.
by Dismukes March 13, 2004
Get the ground rule doublemug. by Ian Floetl September 21, 2005
Get the ground rule doublemug. Jacking off while you take a dump.
by the baseball king March 28, 2011
Get the ground rule doublemug. Copping a feel on a girl without ever making out. Most commonly occurs at parties or dance clubs. Named for the circumstance in baseball when a player hits a ball and it bounces over the wall. He automatically advances to second base.
Person 1: Dude, did you see me grabbing that girl's tit when we were dancing? I totally just got to second base in like 5 minutes.
Person 2: I'm not sure if that qualifies as second base. It's more like a ground rule double.
Person 2: I'm not sure if that qualifies as second base. It's more like a ground rule double.
by gabulldogs123 August 23, 2008
Get the Ground Rule Doublemug. by Dref321 October 4, 2009
Get the Ground rule doublemug. Having cyber-sex with your significant other. This is referred to as a ground rule double because even though you may think you are going pretty far, you can ultimately only get to second base.
Eric: "How did your Skype conversation with your girlfriend go the other night?"
Sean: "Ground rule double every time bro!"
Mel: "LOLS"
Sean: "Ground rule double every time bro!"
Mel: "LOLS"
by BerkeleyStudentFoodCollective September 23, 2011
Get the Ground Rule Doublemug. When a guy finds himself in an unclear sleeping situation with a woman, he is entitled to "take second base" without comment or condemnation.
Guy #1: "Yo, I heard that (insert female name here) crashed in your bed last night."
Guy #2: "Yeah...nothing happend."
Guy #1: "What? You declined a ground-rule double!"
Guy #2: "Shit! Did I really?"
Guy #1: "Yeah, you were definitely entitled to boobie touch-age."
Guy #2: "Yeah...nothing happend."
Guy #1: "What? You declined a ground-rule double!"
Guy #2: "Shit! Did I really?"
Guy #1: "Yeah, you were definitely entitled to boobie touch-age."
by Cal Ripken Jr. April 2, 2011
Get the Ground-Rule Doublemug.