25th base

25th base is the act of having sex with 2 women, at the same time, while playing Starcraft on the PC against 7 people and owning them all. While blindfolded. This also makes you more godly then Chuck Norris, Bruce Lee, and Arnie combined. You also win at life. Any base after this is for pure show and tell, since if this feat is accomplished, you are God.

Jack: I got to 25th base last night. Twice.
Everyone within 50 meters: ALL HAIL THE NEW GOD!

by DecadeOfAggression January 4, 2009

Back to base

Back to base. Abbrevated to b2b.

If you're done doing whatever you were doing (a quest in an RPG, shopping at the grocer, finished work for the day, etc etc) and you're about to head home.

#1
Guy 1: We finally killed all the murlocs we needed to, yay!
Guy 2: b2b

#2
Guy 1: So, did we get everything on the list or do we need more cheese for the nachos?
Guy 2: Nah we're fine, lets head back to base

by Dallester October 9, 2009

eighth base

Touching knee caps

Brandon: You know why she wears shorts right?
Arthur: No why?
Brandon: It's easier to get to eighth base that way.
Arthur: Her knees do look pretty sexy today.

by CooRiderOfTheNight January 9, 2011

77th base

Doing every single Alaskan _____ in one session. These include but are not limited to the Alaskan earthquake, Alaskan chopsticks, Alaskan crabhammer, Alaskan Gold Rush, and the Alaskan Umbrella. An Alaskan Snow Dragon must be the last sexual act performed. Good luck.

Guy 1: Dude I got to 77th base with sarah last night.

Guy 2: Get away from me you sick mother fucker.

by werewaffle March 22, 2010

Base Virgin

a base virgin in someone who has not visited the sexual bases with a partner, or the four f's.

"Omg Sally is obviously a base virgin. did you see her outfit the other day??!"

by lilbossygurrrrrrrrrrrrrrrl July 12, 2006

base jumping

BASE is an acronym that stands for; Building, Antenna, Span (ex. a bridge), Elevation (ex. a cliff). To become a "base jumper", participants in this extreme sport are required to parachute from at least one of each of the four structures/elevations that make up it's name.

Pro snowboarder, Jim Rippey can be seen performing a base jump from an antenna in the movie, TB8.

by Jonny|B July 9, 2005

Ninth Base

Ninth Base (n.) - when you just have to slap your freaking partner off because they aren't giving you time in between orgasms. ENJOY!(:

It was hard for Penelope to breathe when Stanley took her to ninth base and all she could do was moan.

by WienerPoop April 11, 2008