nalguitas
A fancy word for your butt cheeks. Used when someone's butt is so good it makes you want to slap them.
My cousin’s nalguitas are so round I could sit on them and take a nap.
I asked her if she wanted to go to the mall, and she said, 'Only if I can show you my nalguitas.'
He got called out for showing off his nalguitas in the school hallway.