ey in English: Used to call someone's attention, or as an intensifier when placed at the end.

Meanings

colloquialUsed to call someone's attention, or as an intensifier when placed at the end.
Boah, ey!(Whoa), man!
colloquialExpresses indignation or disgust; oi
Ey, lass den Scheiß! So geht man nicht mit anderen Leuten um.Oi, quit that shit! That is not how you treat other people.

GermanEnglish

Ey, was zum Teufel suchst du eigentlich?Man, what the hell are you looking for?

Ey, ich bin auf deiner Seite!Hey, I'm on your side!

3 more examples

Ey Alter, dieses Zeug ist spitze!Yo, man, this shit is top notch.

Ey, was guckst du, Alder?What the hell are you looking at?

So eine beschissene Regel, ey.Such a stupid rule.