packin mustard
When a person is so hot they could make a hot dog cry. You say they're packin' mustard because they're so good-looking and you're too dumb to not notice.
I saw my neighbor walking the dog. He was packin' mustard. I started yelling at the dog.
My mom said my brother is packin' mustard. I said, 'He's not.' She said, 'He just is.'
My friend said my teacher is packin' mustard. I said, 'That's my teacher.' She said, 'That's your teacher.'