Quack

A word when repeated enough times can annoy the hell out of anyone.

Random Person:*says Quack for the 20th time*

Pissed Victim: I SWEAR TO F****** GOD IF YOU SAY THAT ONE MORE TIME I'M GONNA-

Random Person: Quack.

Quack

A word said randomly by someone who is bored to annoy bystanders.

Random Person: Quack
Bystander:*looks over at them angry because that's the 23rd time they have said it*