Lag Fighting
When you’re arguing with someone on AIM or Facebook Chat and you’re too slow to type your reply before they type something else and you send your message when the whole conversation has already moved on.
You type 'I told you so' after they already said 'I’m going to beat you up' and then they left the chat.
You send 'I’m still mad' when they already said 'I’m going to get pizza' and they didn’t even care.
You type 'I’m not done yet' when they already said 'I’m going to bed' and they were asleep.