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1. an arm and a leg, a great deal of money: to cost an arm and a leg. 2. arm in arm, with arms linked together or intertwined: They walked along arm in arm. 3. at arm's length, on terms lacking in intimacy; at a distance: to keep business associates at arm's length. 4. in the arms of Morpheus, asleep.5. put the arm on, Slang. a. to solicit or borrow money from.. arm in arm, with arms linked together or intertwined: They walked along arm in arm. 3. at arm's length, on terms lacking in intimacy; at a distance: to keep business associates at arm's length. 4. in the arms of Morpheus, asleep. 5. put the arm on, Slang.
1 Roll up the sleeve on your left arm or remove any tight-sleeved clothing, if needed. (It's best to take blood pressure from the left arm, if possible.)  Rest in a chair next to a table for five to 10 minutes. (Your left arm should rest comfortably at heart level.)