Slayer Kurwa - Polish sentence meaning, more or less "FUCKING SLAYER!". Usually used by 13 year olds, who want to impress their friends/daddy/mommy/brother/drug dealer in comment section on YouTube.
Guy #1 : Dude wanna go see Slayer?
Guy #2 : FUCK YEAH DUDE! SLAYER KURWAAAAAAAAAAAAAAAAAA!