When you burp into your sexual partners butthole your giving them a bubble butt.
Bro she let me give her a bubble butt.
A person who sucks ass with a boba straw, or eats ass in general. A term from the show “Big Mouth”
Friend 1:“Did you hear what Jacob did to Sarah?”
Friend 2: Yea he’s a BBBB/Boba Bubble Butt Bitch