"Down syndrome ass" is a colloquial term used to describe a buttocks that appears larger or differently shaped than typical. It's often characterized by a notable prominence or awkwardness in its form, resembling the appearance associated with Down syndrome, a genetic disorder. This term is not medically or scientifically recognized and can be considered offensive due to its derogatory nature.
"Yo, check out Shawty over there with that Down syndrome ass, it's like two basketballs stuffed in her jeans, no lie."
"Yeah, she got that Down syndrome ass, it's like she's carrying a whole extra load back there, making heads turn on the block."
Bro, her booty's like 'bam!' – Down syndrome ass, making the hood go wild, you feel me?"