hrth
"hrth" is a term that means everything and nothing at the same time. One could use this term as a game of sorts, where a few people would act as though they completely understood each other while using this term, to intentionally confuse people.
Person 1: Man, that was hrth
Person 2: I agree whole-heartedly
Victim: Umm, "hrth"?
Person 1 + Person 2: What, you don't know what hrth is?
(drags on)
Person 2: I agree whole-heartedly
Victim: Umm, "hrth"?
Person 1 + Person 2: What, you don't know what hrth is?
(drags on)