Definition of sharp-elbowed in English:

sharp-elbowed

adjective

  • Very assertive in the pursuit of one’s own interests, typically at the expense of other people.

    ‘a sharp-elbowed businessman who knows how to work the system’
    ‘children with less sharp-elbowed parents are losing out’

Origin

Early 19th century (in the sense ‘having pointed or bony elbows’): from the idea of elbowing people out of one's way.