A really lame and dorky way to acknowledge someone. Used primarily in place of "ok", "sure", " of course" or "alright"
Pete: "Kyle, can you drive me over to pick up my car from the mechanic?"
Kyle: "Oh, righty roo!"
by KImCobain March 12, 2015
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Early 17th century. From Latin, smackus de roois. Theory of origin: from the time of Seneca; first noted use in Letters from a Stoic. From the verb, "smacka-da-roo," signifying a real up-and-comer, go-getter, straight-shooter, and other hyphenated synonyms. One who "smacks the roo," from Augustus Caesar on to Joan of Arc and to present-day Margaret Thatcher, is not afraid to take charge of any given situation, to be the captain of their soul, the master of their fate. Made popular by "Invictus," Wiliam Ernest Henley. Also made popular by certain intrepid Australians smacking kangaroos, but let's not get into that...
Babushka: Did you see how MC pretty pants got that promotion at AWS through sheer hard work and effort?
Macushla: Yeah, she's pretty awesome. She's been known to smack the roo from time to time, but she must've really smacked the roo in that last quarter.
by Babushk September 19, 2019
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Underwear!!

*Note* (Usually used when refering to briefs)
Greg's under-roos are to skidmarks as canvas is to paint.
by Bent Himself June 17, 2003
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A sassy sarcastic expression made with ones face in which the person has the lips of an angel and one eyebrow raised
Angelina Jolie sported a sexy low-cut dress and a konji-roo expression to the Oscars.
by Esercainas May 07, 2008
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Tactic for calling customers out on their bullshit. The process calls for sending a stock map to the customer without telling them, giving the impression that you are attempting to fix their map.

When the bike presents the same issue(s) that it did before, proudly proclaim that you sent a stock map which confirms the issue is not FP3 related. Vance & Hines customer service - we never miss.
It's doing the same thing? Well that's your stock map... not an FP3 issue. Classic stock-a-roo!
by pet_soundsations February 24, 2021
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In Australia, it is the morning event following a dinner of kangaroo stew.
Hey mate, after last nights delicious kangaroo stew, I just had to shit a roo.
by Trumpina November 25, 2018
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The activity consisting of being held upside down submerged in a garbage can full of water for as long as one can hold ones breath. Once one has been put back to the standing position, the person has to bong a beer. its a rush but quite fun. Usually done at frat parties.
Did you see those two hott girls just do that dunk-a-roo? They are fucking awsome!
by Kirsten Elizabeth August 25, 2006
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