Telling your friend to look at something that isn't actually there and then saying 'one nil'. This phrase is used because its like
keeping score of how many times you've tricked eachother but without
the score ever actually increasing.
Players will usually start safe and believable, but eventually make extravagant
assumptions to make their friend look even more foolish for looking.
Antony: look at that huge
spider!
Dan: *turns and looks*
Antony:
one nil haha as if you actually looked, idiot!