You can use it to be nice, so as not to insuult those close to you.
ex:
Friend: How do these jeans look on me? I love them.
You: (pleasantly) SO barbchop! (in this case barbchop means bad)

OR EVIL, if you would not like to get in trouble to insult those who pester you.
ex:
You: (to some tag along nitwit who thinks they're your friend) You are the most barbchopping person I have ever met! I don't think it would be possible for you to be more barbchop!
(in this case, barbchop means "ridiculously crap" or similar.)