apart from the fact that all the things you quoted from urban dictionary are synonymous of terms I mentioned. do you realise you are using the defition of tank for justifying a non-tank performance according to you?
I assume you obviously rule out the tank hypothesis in Seppi's defeat against Lu on clay too as they played 29 games and everything above a 6-0 6-0 is not classified as tank on urban dictionary?
did he try to lose? If yes then it was a tank
People throw around tank way to loosely here. There are maybe 10 tanks on the ATP level a year as an estimate. But around here people have come to call everything a tank the moment they see a player lacking a little energy.
That's MTF for you, they'd call everyone a fixer and a doper too if it weren't against the rules. Fixing would mean the same as tanking does now, and doping would mean playing above your normal level. That's what happens when words are thrown around like that. They start to lose any real meaning