lock arms

lock arms

To link arms (with someone else) very tightly and securely. We were able to prevent the bulldozer from advancing by forming a circle around the old tree and locking arms. In the schoolyard game red rover, you have to lock arms with the people on either side of you so that the other team's players can't break through.
See also: arm, lock
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.
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