Ja zwanzig (yes 20)
A magical phrase that makes everything you say sound like you're giving orders
'Ja zwanzig' when my friend asked if I wanted to go to the park and I was too cool to say yes normally.
'Ja zwanzig' when the barista asked if I wanted a coffee and I was already halfway through my third drink.
'Ja zwanzig' when my brother asked if I wanted to play video games and I was too busy being a boss.