PB&J refers to the usage of peanut butter as lubrication during intercourse, and proceeding to cream inside of your partners lovely lady loaves. Also known as Peanut Butter and Jizz sandwich
Private Browsing and Jerking Off. The assumption that any timesomeone uses private browsing on their mobile phones they are doing so to watch porn and masturbate.
“Hey Steve - what did you do last night after you struck out at the club?”
“I went home for some PB&J and went to sleep”