Oink （めす ぶた）

He Says:
mesu buta　（めす　ぶた） = sow,female pig
This is one of dirtiest words you'll know.
mesu is female, buta is a pig.
So mesu buta is so fat or ugly girl,or a loose girl etc.
If you say this word to girls,immediately our relationship is over..
By the way, we don't say osu buta(=male pig).
But we will show you many dirty words to men little by little later.

She Says:
Seems like being called a pig is a universal insult. Go figure.
I wish we would get to the insults for men. I mean real insults, not just baka. I think He's afraid to let me know cuz I have an uncanny ability to remember all the bad words.

The next word is...オナニー。