Waiting five seconds to reply to someone to give the impression that you haven't been waiting for their reply
Tom: Why haven't you replied to her already
Tim: IM 5 second rule
Tom: Oh so she doesn't think you're obsessed with her.
Tim: IM 5 second rule
Tom: Oh so she doesn't think you're obsessed with her.
by Someone1234567891011121314 June 20, 2009
Get the IM 5 second rulemug.