n. what shows up on the tissue paper after a girl wipes her poopy arse during her period.
"Cramps aren't as painful as the PB & J"
by Coco Been February 5, 2008
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When you fuck a girl thats on her RAG then stick it in her BUTT
dude i was gettin this girl the other night while she was on her rag then i put it in her butt ..now thats what i call a PB & J
by Sethzilla June 29, 2011
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One of the cutest slash pairings in homestuck. It is Gamzee and Tavros. it's called PB&J because Gamzee has purple blood, and Tavros has brown.
"Ohmygosh. This PB&J fanart is the BEST."
by Stuckie444444444 September 4, 2012
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A gay threesome. PB&J meaning Penis, Butt, and Jizz.

Also an overrated sandwich that is easily outclassed by lunchmeat.
John put the P in Tim's B, and Dave started to J all over them, completing the PB&J sandwich.
by DildoOfDarkness January 29, 2016
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The act of smearing jelly on the ass of one partner and peanut butter on the ass of the other. Both get down on their hands and knees facing away from each other and proceed to slam their butt cheeks into one another until the jelly and peanut butter are clearly spread and mixed. Whenever the partners see fit they may stop, take a piece of bread, wipe their partner's butt cheeks clean, and consume their prize.
Honey, break out the tarp, we're gonna get our PB&J on tonight.
by Mampar June 16, 2011
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noun - A shart in edible underwear.
"Your mother eats far too much fiber. She did a pb&j right before I showed up last night. Man, those edibles tasted awful, but I got them down. Gotta be polite and eat what you're served!"
by methuselah perrywinkle March 20, 2010
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pb&J is the bestest pbj friend you can ever get!!! hes such a jojo nerd that he probably sings sono chino sadame everytime before he gOES to slEEP !!! HE ALSO LIKE FOOFIGHTERS AND LIKES TO YARE YARE DAZE HIS HAIR is PBJ coLors becauSE R E A S O Ns A N D JOJO. also his best friend is danny because shES THE COOLEST PERSON IN ZA WARUDO AND SHE SHOWS JOJO TO PBJ HE SHOULD BE GRATEFUL. anways pbj is epic, protect at all cost.
"PB&J! PB&J! PB&J!"
"Stop calling me that"
"No because of you're hair which looks like you smudged pbj all over it"
"fine whatever..."
by dannydanndann October 2, 2020
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