stay beef

From the italian "Stai manzo". Mainly used to tell to someone to keep calm, even if he shouldn't.
WARNING: Do NOT use this near a vegan! Injueries may occur!

Oh c'mon man, stay beef!

attach yourself

From the italian "Attaccati al cazzo!" and literally translates to "Attach yourself to this dick!". Could be used in connection to stay beef and mainly used to roughly refuse to answer to anyone you want.

Person 1: "Could you please borrow me 50 bucks?"
You: "Attach yourself and stay beef!"
Person 2: *Laughing*

these dicks

From the italian exclamation "Sti cazzi!". Used to denote astonishment.

Person 1:"Yesterday i won 10000 Euros!"
You:"These dicks!"