literally 'the elbow turns outward'; used to describe someone who helps or favors outsiders rather than their own family, team, or group

to favor people outside of one's own family or group at the expense of those close to oneself; literally, to turn one's elbow outward

To side with or help outsiders instead of one's own family, friends, or organization; literally means the elbow turns outward

elbow; the joint between the upper and lower arm