see home base
"he tried to get to 4th base with me.."
by etchasketch October 21, 2003
Top Definition
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
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 July 07, 2015
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
After 3ed base is when you add animals in your sexual activity.
"Jan and John throw butter and smokey in there titty fucking asshole pleasures when they got to fourth bases."
by dickinyourmouth January 22, 2009
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