Jenny’s Thicc Ass Share definition Flag Term used to evaluate thickness of a females rear end. Usually used with a fraction as a prefix. Damn! She’s like 3/5ths of Jenny’s thicc ass. Jenny’s Thicc Ass by L33tnibba March 5, 2018 0 0 Get merch Get the Jenny’s Thicc Ass mug. Buy Now — $32.95 See more merch