Hanapin
keister
n
Halimbawa
After a long car ride, his keister was sore from sitting so long.
He slipped on the ice and landed hard on his keister.
He told the kids to sit their keisters down and pay attention.
That chair was so uncomfortable it made his keister ache by the end of the day.
She gave him a gentle nudge on the keister to get him moving.