Hs is a german swear word. It‘s mostly used online. Hs is the abbreviation of "hurensohn" and that has the same meaning as the english swear word "son of a bitch"
A: omg that guy just cursed me out
B: call him a hs!
Term used for the german word Hurensohn (son of a bitch) in online chats in games like Counterstrike
Du HS
means du Hurensohn (son of a bitch)