How do you say "you suck a$hole in japanese"?

Question

My friend likes being a *** speaking japanese this and that

so I want to show him up

any other curse words would be much appreciated

Answer 1

huchen mata sakitura hako tai. (pronounced as written)

Answer 2

"kono kuso yarou!"

"kuso demo kurae!"

Answer 3

Japanese don't talk like this.

Answer 4

Just say, *bakayaro!*