Usually one would say this to assert themselves as a leader or
Ask this aloud to question the competency of the person in charge.
Bloke 2: "Well I’m fucking this chook mate, so shut the fuck up. We're doing it my way"
(2) A bloke after waiting for food for a long time in terrible restaurant stands up angrily and yells "Who’s fucking this chook?!? Where’s my fucking food?!?"