Aside from its conventional meaning (look it up) can be used as a substitute for 'cool' or 'worthy' in the company of fringe metalheads and acolytes of the Necrowizard.
(Greek):
1.pertaining to the underworld 2.dwelling underground 3.rising up (out of the ground)(B.M.)
Orpheus, a musician who went to Hades (the subterranean land of the dead in Greek myth) to ask for his lover's return to the world of the living, played music for his chthonic audience so beautifully that they relented to his request and let him try to take her back up to the surface.
A black metal/folk metal band from Taiwan, they have been around since 1995, and have made 5 studio albums, and are scheduling their newest album for june of 2011. Their lyrics focus mainly on the subjects of Chinese mythology, Taoism, and political stuff.
Their band name is pronounced Thonic, not Kthonic, Chuhthonic, or anything else.
Metalhead1: "hey, have you heard of that black metal band from china? I forgot their name, but they're pretty good"
Metalhead2:"yea, dude you must be talking about Chthonic! you have good taste :P"
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.