The act of receiving oral sex on the testicle sack.
A ball sack blowjob.
Andy: "Hey Markle, have you ever had a Bsbj?
Markle: "Nooo..."
Andy: "It'd be a lot cooler if you did..."
The act of JP'ing involves taking your hand and shoving it down a females pants proceeded by telling the ho "let's f*uck".
This is technique is only used by real go getter's who know what they want and take it. Proceed with caution and be prepared for lawsuits.
"Bruh, the second she opened the door I hit her wit the JP, shorty ain't expect a street playa."