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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Messaging someone while using or on the toilet.
- I haven't seen David around for a while. Is he okay?
- He is fine. He has been looing me for the past 5 minutes.
by TheInternetDropOut October 25, 2015
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Being so dumb that you cant even wipe your on butt
your mom exposes you on instgram because your so loo
by ..// May 6, 2019
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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 31, 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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when u need 2 get of msn cos u need the loo

so instead of toodle loo u sayin to the loo ya get it?
Girl: I gtg nw bye xxx
Boy: Cya!
Girl: to-the-loo

Now the boy knows y she is going off msn lol. created by Saz.Lol.
by -Thingy!- September 22, 2005
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