A bowling ball is an object that has several uses:
Bowling
Unclogging toilets
Musical instrument
Fleshlight
Clothes
Performing surgeries
Lobotomies
Killing
Playing Plants vs. Zombies
Giving birth
Building a spaceship Etc.
Person A: Hey man, look at this sick bowling ball I bought yesterday.
Person B: Cool! Wanna go bowling?
Person A: Bowling? I'm using it as a musical instrument. *Plays an epic guitar solo using the bowling ball*
Person B: What the actual fuck.
Sexual technique where multiple fingers are inserted into the vagina and anus of a girl, but from an angle such as would be used to hold a bowling ball. A slight variation on the shocker.
"I bowling-balled her for a few minutes after I pulled out."
"Oh baby, you know I always get off when you bowling-ball me."
"I bowling-balled her before we even kissed."
"I tried to bowling-ball my girlfriend, but she neglected to tell me she still had a tampon in."
Ted: "Mark, I totally bowling-balled your wife last night."
Mark: "Fuck you, bitch!"