MCB Thesis

I saw someone put his display name in msn as "MCB Thesis". I not really sure who is him and so i sent him a message asking him if he is doing his thesis for master degree, since MCB seem like a code name for a master degree course. He replied me that why he must doing a master degree thesis but not a diploma level of thesis? i told him the reason, and ask him what is MCB.....

He said ==" .... MCB = Ma Ci Bai ..... *faint*..


note : Ma Ci Bai - a bad word in mandarin which refer to female private