fall into the trap of

fall into the trap of doing something

to do something which is not wise although it seemed to be a good idea when you decided to do it. Don't fall into the trap of buying the extra insurance.

See also: fall, trap

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fall into the trap of doing something

to become involved in something. Don't fall into the trap of deciding to buy a more expensive house than you can afford because someone says it is a good investment.

See also: fall, trap