by kidd . fav June 21, 2010

by gmax June 4, 2005

by the awsomeguy1467 January 22, 2015

by Caity February 21, 2005

The absolute ultimate feminine honor --- a sign of trust and permissiveness that's actually even greater than her allowing you access "down there" --- namely, a chick's giving you a copy of the key to her house or apartment, so that you can just gleefully waltz right on in and "get it on hot 'n' heavy" with her anytime you desire.
Fifth base is actually kind of a "mixed blessings" spot to reach on da ol' playin'-field... yes, it is indeed a wonderful thing if a nice lady entrusts you with the "magical strip of brass", but like all situations like this, "with great power comes great responsibility"... you'll want to "guard that key with your life" --- securely tether it to a sturdy key-ring and/or chain, keep it hidden or locked up when you're at home, and never let it out of your sight when you're traveling... there are far too many less-than-honorable individuals out there who might wanna access said key for equally-less-than-honorable purposes!
by QuacksO November 21, 2018

dan - duuuuuuuuude i just got to 40th base with ginny.
random stranger - you mean you kissed her 2cm stretched ear! aweeeeesome!
random stranger - you mean you kissed her 2cm stretched ear! aweeeeesome!
by gintingz August 24, 2008

You and yer dog getting abducted by aliens and being mutilated together by so called aliens....and maybe enjoying it.
Guy 1: Omf i totally reached 300th base dude it was great rover was like crazy!
Guy 2: Dude thats just wrong :(
Guy 2: Dude thats just wrong :(
by Ellaaaa.electric February 11, 2008
