yn or (yn) is an msn emoticon which resembles fingers crossed. people use this differently, it can either mean that youre tight with someone as in really close friends or people use it when they say goodluck.

The act of extreme masturbation. You must "knock one out" whilst in close proximity to any of the following; Your mum, a nun, your boss, a member of parliament, George Michael. A person with capabilities to act upon catching you mid self-abuse obvisouly ups the ante. Ejaculation must be reached before your danger wank target comes (no pun intended) to investigate. The higher the chances of being discovered with one's pants down, pulling one's war face is obviously where the danger comes from. The more danger involved the harder (or softer) it is to complete the task in hand (snigger). The more dangerous the better. The chance of being arrested, pummeled by an angry father or having your hand severed by an arab's sabre means that you are a pro "Danger wanker."

YN is an MSN emoticon resembling a pair of crossed fingers. If it is said that one person to another are YN, it means that each finger is each person and that they're as tight as two fingers wrapped round each other .
Symbolism of being good friends with someone

on msn type (yn) and u get fingers crossed so when u say someone is ur yn, it means that u 2 r like "that" with fingers crossed!

yn is often said by scene kids to mimic the msn emoticon (yn), which is a pair of crossed fingers. It doesn't particularly mean anything, except, whatever, I don't care.