FA brother!
FA brother! is when you yell like a madman trying to make something officially unholy and totally banned in Islam because you’re that annoying.
FA brother! That cake is haram! It has frosting and sprinkles! Both are the devil’s helpers!
FA brother! Why is he eating ice cream in the morning? It’s like a sin!
FA brother! This movie is so bad it’s unholy! I can’t watch it!