Ballpark
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?