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.