Bend one's elbow and Knock off

Knock off and bend one's elbow are semantically related. In some cases you can use "Knock off" instead a verb phrase "Bend one's elbow".

Knock off verb - To bring (as an action or operation) to an immediate end.

Bend one's elbow and knock off are semantically related. Sometimes you can use "Bend one's elbow" instead a verb "Knock off".