Said to someone who's extremly slow at understanding something just as they get it. This mimics the end of 'Honey I shrunk the kids' where it takes one kid the entire film to get a joke.
Dave: a horse walks into a bar, the barman say's why the long face?
Sara: I don't get the horse sad? cos Horses have got long heads.
Dave: Oh I get it, French Class!!
by SimpsonXL September 10, 2008
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