Coppertop or Copper Top refers to an .avi file that floated around on shock sites such as rotten.com and bangedup.com in the late 90's and early 2000's. It was a short video of a man passing two AA batteries out of his penis in series (i.e. one after another). This internet gem has seemingly been lost, and as of 2009 cannot be found on the web.
"Why do they call this video coppertop? It's just a -- AAHHH WTF?!"
A Matrix term for "Human being still plugged into the matrix". The name comes from the fact the humans in the pods could be turned into batteries with the electricity from the human body. (See The Matrix 1: Morpheus and Neo in the Construct)
an alcoholic drink containing rum and some kind of coke or pepsi. empty out the top 6oz or so of the soda from a 20oz bottle then fill with rum. the rum sits on top of the soda before mixing, giving it the 'coppertop' effect.
'Dude, you wanna make me a coppertop?'
'Sure man. One coppertop coming up.'