"you are a fucktwit, mate"
haha i thought mate was a term of endearment
If you dont know someones name then you just say mate, If you drag it out like maaaaate, then it is sarcastic.
c_unt means person here, and can be said nicely:
If someone is down on their luck, injured or sick = poor c_unt
If someone is really funny = funny c_unt
If someone really overweight = fat c_unt
If someone is underweight and sad = poor skinny c_unt
If someone really fucks up = stupid c_unt
If someone pisses you of (eg in traffic) = fucking c_unt
etc........