First Base Friends 

A non-sexual friendship that includes flirting and occasionally making out.

Girl 1: "Hey, I saw you and Brian making out yesterday. Are you two an item?"
Girl 2: "No, we're just first base friends."

First Base Friends by nhw6789 May 7, 2010

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

desi first base 

making eye contact with another person, preferably one of the opposite sex (or you will be severely punished)

It was love at first sight yaar - I reached desi first base yesterday with anarkali and she reciprocated!

desi first base by Dan Babu November 30, 2006

mormon first base

Engaging in hand to hand contact. In other words, holding hands.

I walked in on Doug trying to get to mormon first base with a girl, while viewing a non-rated R movie.

mormon first base by mormon_playa October 10, 2007

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

Canadian First Base 

Like American First Base, but with a finger in the butt. Also known as a Morneau.

"I went out with that Canadian girl."
"Did you make it to first base?"
"Better. Canadian first base."
"She gave you a Morneau, eh."

Canadian First Base by Bahbarqer Sanchéz August 9, 2016