help with slang/offensive words

[kinki]

: its a cool rap band
: they use cantonese and scold people
: LMF--LazyMuthaFucka
: the name shows it all
: And Hum Ga Ling mean your Whole family die
: wish i didn't offend anyone
: peace to ya
: u can go to the website too
: www.lazymf.com

[kunjaa]

LMF's name: L stands for Lazy and you can guess the rest...with a name like that you can expect profanity but people tell me their latest has less/none.