From the Greek endo for inside, within. Meaning, of course, the same. E is for Endo is a common T-Shirt worn by cool dudes and galz who like it "inside" rather than outside.
Example 1 - Dude: I had an infection inside my intestines and they had to give me a gastrointestinal endoscopy. I wasnt so much afraid of the pain but rather that I'd like it.
Example 2 - Girl: Wow, the guy yesterday really got endo with me.
by Smartaz January 11, 2006
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another name for hookah, waone-ter pipe, nargeela/nargile/narghile/nargileh, argeela/arghileh, shisha/sheesha, okka, kalyan, ghelyoon or ghalyan, or hubble-bubble/hubbly-bubbly.
by chris ~ theripcity32 June 21, 2006
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A)Maryjane, cheeba, weed, Grass marijuana.
B)Freestyle backflips on foot(normally by freestyle jumpers)
A)Yo doode last night I bought a ounce of Endo for the crew to get blazed all up on.

B)Holy sheet that dude just pulled of a sick endo
by Pakilika January 19, 2007
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Marijuana Laced with Crack-Cocaine, yeah that's what Snoop Doggy Dogg was talking about.
"Damn that Endo killed my lungs!"
by Ibble May 13, 2005
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The name of a really cool Rock-band from Miami. They call themselves that because their music is said to reach way back into the darkest depths of raw emotion and expose those feelings with every note.
"Yo, did you guys hear Endo rock the place last night? It was totally AWESOME!"
by Number One Endo fan March 16, 2006
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Aussie term for what the rest of the world knows as a gainer;

A running reverse backflip that can be done off a springboard or a platform. Many people can't do them due to the mental block of going upside down, but they really aren't that hard.
Aussie bloke: you going to endo that?
Aussie Shelia: yeah mate I'll definitely endo it, it'll be fully sick mate!
by Taylor November 29, 2006
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To suck another person's body parts
She has such a nice rack... I'd love to endo on her nipples tbh.
by Dreadprophet March 20, 2008
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