Contraction of the words "charity ". and "upvote".

Where someone may leave a five star rating for a product in the customer reviews. section simply out of brand loyalty, without even owning the product in question. This may be done just to show support for a particular brand whether it be a company, sports team, musician etc, and to artificially inflate the rating of the product so that others may be more inclined to purchase it.
Your favourite artist's now album is out, but you haven't bought it yet and while looking through the page on a web store, you give it a 5* rating to make it seem more desirable to others.

"Surely these positive Bieber reviews are only teenage girls' ' chupvotes."

"I bet Microsoft are getting all their staff to Chupvote the Xbox One"
by Dgod June 11, 2013
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