Bislama
One of the official languages of Vanuatu. The name comes via the early 19th century word "Beach-la-Mar" which is a creole language. More than 95% of Bislama words are of English origin; the remainder combines a few dozen words from French, as well as some vocabulary inherited from various languages of Vanuatu. It's best described as an English vocabulary with an Oceanic grammar.
Example: "Mi no wantem bia. Mi wantem kava." ~ I don't want a beer, I want some Kava.
Noble Kava
Noble varieties are Kavas which are high in Kavain kavalactones, and low in the double bonded kavalactones such as DHM or DHK. The term "Noble" comes from the Vanuatu island, but applies to all Kavas of this type regardless of it's origin.
Tudei Kava
Tudei is a Vanuatu island Bislama pidgin word for "two day Kava". It's a non noble variety of Kava because it is more saturated in heavier, double bonded kavalactones which tend to produce effects that can last up to several days. Tudei Kavas contains small amounts of Flavokavain B which "may" have some negative health effects, if consumed in excessive amounts.
ISA Kava
Isa is a Tudei type of kava which usually comes from PNG (the island of Papua New Guinea).
Palisi Kava
Palisi is a Tudei type of kava which normally comes from PNG (the island of Papua New Guinea).
Koniak Kava
Koniak is a PNG (the island of Papua New Guinea) pidgin word meaning "cognac". Used to generally describe Kava that comes from PNG. Koniak is not a Tudei type Kava. However, Waeld Koniak is a PNG pidgin word for a Tudei like Kava meaning "wild cognac" and is actually a wild growing Piper wichmanii variety.
Kava Dermopathy
A reversible skin condition that occurs in some Kava drinkers after prolonged use. It results in dry, scaly skin and may itch or hurt. The dermopathy may actually continue to spread after Kava use is discontinued, but should begin to recede and disappear within 2-3 weeks (but most recover sooner).
Acetone Test
A simple solvent test that Dr. Lebot came up with, which anyone can perform, to test whether your Kava is a "Noble" or "Tudei" type of Kava. When the Kava is mixed with an Acetone solvent, it will display a light golden color if it's a "Noble" Kava and a darker reddish color if it's a "Tudei" Kava.