bolshy

/B OW1 L SH IY0/
noun
  1. 1

    A government leftist, especially a communist, socialist, or labour union leader.

adjective
  1. 1

    Difficult or rebellious.

    โ€œKate, don't be so bolshie!โ€

Source: https://en.wiktionary.org/wiki/bolshie, https://en.wiktionary.org/wiki/bolshy