This describes all your friends who you play video game hockey with, who do not understand the 'offside' rule in hockey. Anyone who consistently ends up offside, is labeled as an "offside tony".
Your friend has just gone offside for the 3rd straight trip down the ice, "You idiot! Stop being such an offside tony!".
Someone who is extremely anal about the offside rule in football, whether the game is social or competitive and will rage on about it; regardless of the fact that noboby else cares.
“Sam is a real Offside Nazi at training”
“I know right, the rest of us are just trying to have fun”
An illegal move in football, often mis-understood and often questioned by females with no football knowledge to their more football-aware partners.
Imagine you are in a shop queuing in single file. The girl in front doesn't have her purse, then you realise you don't have yours. The solution is your mate at the back can throw you hers. Once the purse is thrown you can dodge round the girl in front, catch it and run to the cashier. BUT, you must remember that until your mate has "actually thrown the purse" it would be wrong to be in front of the other girl and you would be OFFSIDE!!