Similar to a cankle, it is an armpit that lacks definition. It has the appearance of running into the chest. There is no real break between the armpit and the chest. Normally, an oddly fat armpit.

Chepit = chest + armpit
Gosh, I would look so much better in this tube-top if I didn't have chepits!
by ATLslimpits October 20, 2009
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I can see your cleavage.

or

I like your cleavage, (using one word).
*yelling* "E-Chepite"
by Clever101 August 01, 2009
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