F-Star - To flip someone the bird and then flash your backside like y

To flip someone the bird and then flash your backside like you're showing off your worst toilet habit.

I F-Starred my boss after he yelled at me for wearing socks with sandals.

My friend F-Starred his ex during the school dance and got sent to the principal's office.

I F-Starred my little brother when he ate my lunch and didn't even say sorry.