a substance that is smoked, giving the smoker a high from contents which include THC, also called marijuana or cannabis.
This loo is really dank

Can I get a dime bag of your best loo?
by Nater_tatertot February 15, 2010
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Waterloo, Iowa a lame ass town where the only thing to do it get drunk.
by Travis Peck December 11, 2007
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1)Someone who spends most of their time day dreaming
2)Someone who is having a loopy or off day
3) Someone who is very ditzy
Lisa: 1 + 1= 5
Lacey: you are such a loo loo head
by Lacey hall March 30, 2006
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An exclamation of intense excitement or extreme satisfaction, primarily upon accomplishing an achievement, winning a competition, or when expressing pride in an organization. Also can be used as a battle cry.

Originated from Kirbypenguin's frequent use of the word, perhaps inspired by woot or woo hoo.
Kirbypenguin: I just got 99 Fishing! Woo Loo Loo!

Dragune: We won!
Anubis 451: Woo Loo Loo!

Strabo9: Instinct FTW! Woo Loo Loo!
by Lakster37 August 26, 2009
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a guyanese/carribbean slang for a big penis
Rachel- omg gurl i slept with Travis last night

Patty- omg how are you alive, word on the street he got a donkey loo loo
by QueenofDicks June 29, 2018
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