First Base 

The first step in a sexual realtionship involving making out or french kissing

"I don't when when that chick is going to give me some action, it's been a month and we're still only on first base!"

First Base by Little Blue Patakha January 16, 2003

First Base 

In relationship/sexual terminology, this is the Stage in dating where the couple kisses, or makes out.
It is the First Stage, starting with the first kiss, and leads to repetition to say Goodbye or Goodnight.
It signify's the Beginning of being in love.

This can lead to French Kissing, or kissing of the Tongue.

This is the Beginning of Courtship, or a Physical-Loving Relationship that naturally resolves to advancing sexual stages until 'Home Plate'.

"Jimmy made it to First Base with Kelly today!"
"Congrats to him - Maybe he can find that Gum I left in her mouth last week..."

First Base by SMX February 8, 2013

First Base 

French kissing. Is followed by feeling up second base, oral third base and sex home run

I finally got to first base with matt last night!

First Base by alesandra December 29, 2005

first base 

The French Kiss. Not just a peck on the cheek or lips. You gotta use your tongue.

"How far'd you get with her?" "Only first base, I might lose her if we don't get any farther"

first base by footballstud580 April 3, 2004

first base 

Snogging / Making Out / French Kissing

Amy and Jack went to First Base at the movies last night.

first base by Alex February 13, 2004

First Base 

making out

"i went to first base with this girl"

First Base by Dick Hertz May 21, 2003

first base 

when two people are making out

it's been three months and i've only gotten to first base.

first base by G-G April 13, 2007