Question: what are really bad words?
Answer: F*ck. The word f-u-c-k is one of the most widely recognized swear words in the English language. ... 
F*ck you. Adding the word 'you' means you're directing the offense onto someone else. ... 
Shit. ... 
Piss off. ... 
Dick head. ... 
Asshole. ... 
Son of a b*tch. ... 
Bastard.