Excuse my half ass
It is said when you put one leg on another while sitting on a chair in a way that your half butt is facing the person in front of you.
Excuse my half ass guys, I got pimples in my ass
When I sit on a chair for too long, I rest one leg on the other excusing my half bare ass
When I sit on a chair for too long, I rest one leg on the other excusing my half bare ass