a number four - When two people hit the toilet at the same time like they’re

When two people hit the toilet at the same time like they’re in a poop gang and they’re besties for life.

My sister and her friend did a number four at the park and it was the best part of their day.

I did a number four with my best friend at the mall and we laughed so hard.

My dad and his friend did a number four at the bar and it was the highlight of the night.