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spoken used for telling someone to stop being silly and behaving like a child
used for telling other people that you think that someone is being silly
used when you think that someone is behaving in a stupid or dishonest way
used for telling someone that they are behaving in a stupid way, as if they were much younger than they really are
used for saying that someone is doing something very stupid, or has done something very stupid
used for telling someone that you think what they are saying is not sensible
used for showing that you think that someone has said or done something silly or annoying
used for telling someone to start considering something in a sensible way and stop being silly or unreasonable about it
used for saying that you think someone is doing something stupid
used for telling someone that they are stupid to believe something
in competitive cycling, the illegal use of motors on bikes in order to gain advantage over other riders
a person or team that does not win a competition or race but is second, or is close to winning
be reversed; be as if it had never happened
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Free thesaurus definition of ways of saying someone is stupid or silly from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Publishers Limited.