paypalpatation
The sudden feeling of angst after either entering your bid or (most effective) winning an eBay auction, as you realise that the seller may not take PayPal. Usually followed by sudden rapid scrolling southwards to confirm or deny your suspicions.
Immediately after whooping out a celebratory "All Your Base" cheer for winning the auction, Diveboy suddenly experienced his biggest evah Paypalpatation as he realised his oversight of not checking the Sellers payment conditions!