Someone who reads catalogs of equipment -- high performance car parts, electronics or whatever -- and suddenly thinks he knows everything. These people are easy to spot -- they spend a great deal of money "improving" their cars, stereos or whatever. What they say sounds like hyperbolic ad copy and they won't let go of their beliefs, no matter how often someone proves them wrong.
Adam: Oh great, Ed's on a rant. He bought some gadget he found in a hot rod magazine for his car and claims it's doubled the power and his fuel economy. I looked at the thing and it's junk, just like all the other "performance parts" he bought in the last month.
Eve: That's Ed, alright. A real "Catalog Engineer."
Opening your e-mail and finding dozens of "update" messages from Facebook, each with a link to a comment or reply to a post made on someone else's facebook page. This can be caused by a Facebook Tagfest.
Oh man, what a mess! My my e-mail got Face-Blitzed! There were 43 messages, all of them were notices from Facebook telling me someone posted a comment on someone elses wall!