Karen

Someone with the power to summon the manager, anywhere, anytime. Their species typically is anti-vaxxer, racist (to a degree) and has a haircut that immediately signals a Karen is in the radius.

Karen: Waiter GET THE FUCK OVER HERE
Waiter: Yes Ma'am?
Karen: This coffee tastes like bullshit! I want to speak to the manager!
Waiter: intense sweating