A phrase that has been ironically quoted by many vtubers after a Twitter user posted screenshots of an alleged vtuber asking for free art saying "I'm a vtuber and you'll regret this" after the artist refused.
Tony: What are you doing tonight?
Gordon: ya mum!
Tony: Now do we really have to resort to this childishness?
Gordon: Does ya mum have to resort to childishness?
Scenario 2- Childish, good
Tony: What are you doing tonight?
Gordon: ya mum!
Tony: keep my mum out of this and I'll keep this out of ya mum
Gordon: Yes, master.