p&bj Share definition Flag When you put peanut butter on your dick and have your girlfriend lick it off. Yo dood i just had Jess give me a p&bj we used that good shit jiffy, and damn it felt good. p&bj by cracksmokingwhitey December 18, 2008 0 0 Get merch Get the p&bj mug. Buy Now — $32.95 See more merch