oolkor voäin: A gutterspeak corruption of the Low Eldraeic, and Trade, phrase ulquor vohaïnár, literally “no brawl (is present herenow)”. (From ulquor, zero degree quantifier + vo, second size prefix + haïn, battle + ár, predication affix, in this case creating an observative.)
Unlike the original phrase, which is not used in this sense by civilized speakers, the gutter form is often heard grunted as a greeting and farewell by the less reputable sort of mercenary, pirates, slavers, street gangs, and other assorted lowlives and scum of the galaxy, indicating a lack of desire to fight at the present time and place and a hope for its reciprocation.
It reflects a surprisingly sophisticated sense of irony that the traditional response, “ankan voäin”, is a likewise corrupt form of anqan vohaïnár, meaning “just a little brawl”.
– A Star Traveler’s Dictionary