This is an on the spot idea, so it’s not really fleshed out.
Unlike normal fluffies, Condiment fluffies tend to poop ketchup, mayo, mustard, relish, etc.
Since fluffies tend to produce more poop than humanly possible, It would mean condiment fluffies would produce a bunch of whatever condiments you like.
Someone is like, “I’m going to put ketchup on my burger!”
“ketchup doesn’t wan’ bad uppsies! am not nummies am fwuffy!”
THEN HELL WAS UNLEASHED. It wasn’t Ketchup.