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1.
(n) (1) A same general vicinity or idea as something else; an estimate of the scope and range of something.
(vb) (2) To estimate or approximate.

(1) He's looking for a used car in the $5000 ballpark.

(2) I'd ballpark Derek Jeter's life earnings to be about $200 million.
by Bill Peters November 23, 2006
 
2.
The area between a female's pussy and asshole; where your "balls" are "parked" while fucking girl missionary in the pussy, or doggy-style in the ass.
When Jim and I were double teaming Krista,he in her ass and me in her pussy, we kept trying to not have our balls meet at her "ballpark".
by CaptainKetchup May 27, 2010
 
3.
When there is a hobo sitting on the end cap of the parking lot, you are so fascinated by how poor he is you forget to put on the brakes and your front wheel ruins his testicles.
Me: Hey Travis, you know the hobo sitting in Taco Bell's parking lot?

Travis: Yes.........

Me: I totally Ball Parked that dude!
by LuigiXmission.420 September 04, 2010
 
4.
v. 1) estimate. A word, based on an obscure reference, that makes no sense to non-Americans.

2) a sexual practice.
I don't know when the Dentist can see you but I could probably ballpark you at four.

Will that help my toothache?
by gnostic1 May 27, 2011
 
5.
A "ballpark" is when a female uses her ass cheeks to jack a guy off. It is referred to as ballpark because of its visual similarities to a ballpark frank hot dog held firmly with in its bun.

In laymans terms: ass tug.
Tripas: So how was the date yesterday?
Mijo: Bro, I got ballparked! It was awesome

Mijo: Give me a ballpark, baby.
Girl: Okay baby. I'll ballpark you.

Mijo: Jack me off with your ass.
Girl: You mean you want a ballpark?
by Tripas August 16, 2011
 
6.
To sneak up behind someone, grab them by the hair, pull their head back and then reach around and smack them in the face with a raw hot dog.
I am going to ball park Drew.

I totally ball parked Drew last night.

Next time I see Drew, he's getting a ball parking.
by onlyanightmare July 27, 2008
 
7.
a nick name bestowed upon somebody that has sucked so many dicks or presently has so many dicks in his/her mouth that they may as well be a package of hot dogs, hence ballpark. also you may call the person a particular stadium like fenway or yankee stadium.
you have so many dicks in your mouth, ballpark!

(as somebody walks by that has a tendency to give blowjobs) oh hey fenway!
by in jury October 14, 2010