eBaytor 

Someone who is excessively on eBay and constantly looking for deals.

Samson, a chronic eBaytor, spends hundreds of dollars each week shopping online.

eBaytor by Samson's Roomate October 27, 2010

ebaytor 

some idiot who shops ebay a lot.

damn this ralph guy is a chronic ebaytor

ebaytor by ralph's roommate October 27, 2010

eBaytard 

noun;
pronounced: e-buh-tard.

Ebay Trolls, also known as Forum Trolls who have nothing better to do than harrass eBay Sellers by emailing them and claining to know more than the Seller does about the item up for auction. Sometimes resorting to insults and mindless banter about the Seller. OR harrassing them about minor typos or misspelled words.

Selller" Would you look at this email? Another eBaytard going on about how he knows what shade of red my lunchbox is better than I do"

or

Darn eBaytards need to get a LIFE

eBaytard by AnnoyedSeller August 30, 2009

ebator 

A joke made about a person being a master debator. If one than says take away the D and well see who you really are, and some smart ass realises it does not create a real word.

andrew, ebator is not a word!

ebator by Anonymous196 March 17, 2010