1 the joint between the upper and lower parts of the arm where it bends in the middleShe jabbed him with her elbow.He rested his elbows on his knees.She grazed her elbow in the fall.He's fractured his elbow. 2 the part of a piece of clothing that covers the elbowThe jacket was worn at the elbows.3 a part of a pipe, chimney, etc. where it bends at a sharp angleIdioms
get the elbow
(British English, informal) to be told by somebody that they no longer want to have a relationship with you; to be told to go awaygive somebody the elbow
(British English, informal) to tell somebody that you no longer want to have a relationship with them; to tell somebody to go away more at not know your arse from your elbow at know verb, more power to somebody's elbow at power noun, rub elbows with somebody at rub verb
ˈelbəʊ 
ˈelboʊ 