yappanese Share definition Flag The language spoken by yappers, aka people who talk a lot. "Wow, Gabriella talked for hours on end yesterday! She wouldn't stop yapping! It's like she was speaking Yappanese!" yappanese by kuroo_nyethescinceguy September 17, 2023 0 0 Get merch Get the yappanese mug. Buy Now — $32.95 See more merch