Top Definition
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.
#aim #5 second rule #im #instant messenger #aol instant messenger
by Someone1234567891011121314 June 20, 2009
5 Words related to IM 5 second rule
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