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When you refer to your other intimate moments with your partner as first, second or third base, yet you have forgotten that the next step is referred to as a "home run", and is not called "fourth base". Yes, fourth base is sex, but come on! Just call it a home run! All the other bases are used in a reference to the bases is baseball. Have you ever played baseball? There's no fourth base!
"Dude, I totally got to fourth base with my girlfriend last night"

"You mean a 'home run'?"
"Yeah, either way we totally smashed".
by slurpeesaredelicous January 08, 2017
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May 8 Word of the Day
1. Slight sins or offenses
2. Petty crimes or small infractions
3. Las Vegas Punk Rock!
Peccadilloes shows rule.
by James Messina August 11, 2006
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The final stage in a relationship that involves sexual intercourse.

First Base -- Making Out (tongue included)
Second Base -- Rubbing, Dry Humping, grinding.
Third Base -- Oral Sex
Fourth Base -- Sex
"I can't believe it, he got to fourth base on his first date with her!"
by Cloud Infinity December 20, 2006
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This is the final step in a relationship that involves having sex.
Me and Jace hit fourth base last night, oh boy was I ready for that.
by NekoNeoNano June 27, 2015
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Means your home or your primary place of residence. The term is derived from Baseball where the Fourth Base in a diamond is called the 'Home Plate'...
"Ayo, holla at me, I'm at my fourth base dog"
by AdoubleR September 23, 2008
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