an arm and a leg


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Related to an arm and a leg: break one's back, believe one's eyes

an arm and a leg

slang A lot of money. College tuitions cost an arm and leg nowadays. I'm sick of paying an arm and a leg for rent in this town.
See also: and, arm, leg

an arm and a leg

Slang
An excessively high price: a cruise that cost an arm and a leg.
See also: and, arm, leg