1) A deliberate misspelling of "historical" and "hysterical" to create a portmanteau, which means literally "very funny history" or "funny today, though it was serious at the time."
2) An extension of this meaning is to derisively imply that something today is garbage, of little importance, or no value — but might have "histerical value" in the future.
1) "The TV Show Dragnet is a histerical example of 1960s attitudes."
2) "I am keeping these videos of Trump speaking for their histerical value."
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.