ebay-fu
Ebay-fu is when you know how to play ebay like a chess game and always win.
I bid for a game. He sniped it. I sniped his bid for a snack. I won.
She outbid me for a watch. I outbid her for a snack. I’m the winner.
He sniped my bid. I sniped his for a pizza. I’m the king of ebay.