Sayings 'a dime a dozen' & 'pull someone's leg'

Are those idioms common? I mean, are they worth learning them? :)

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Originally Posted by undeddy

Are those idioms common? I mean, are they worth learning them? :)

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These idioms are commonly used in the United States. You should be aware of their meanings because you will hear them when speaking with a native speaker from North America. ;-)

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Originally Posted by amigos4

These idioms are commonly used in the United States. You should be aware of their meanings because you will hear them when speaking with a native speaker from North America. ;-)

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thought it was used by canadians as well :-? + one can hear it a lot in action movies, u no as in prison sentence or 10 bucks ?

Are they perceived as casual and informal phrases?

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Originally Posted by undeddy

Are they perceived as casual and informal phrases?

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Yes! Idioms are reflective of regional speech or dialect and can be used in casual and informal conversations and correspondence.