This expression (while literally meaning "my eye") can roughly be translated to "my ass" or "bullshit".
Clever Guy : Monay!
Girl : Yea, you're right. I had 2 glasses.....
(2) a kind of bread that has a slit shaped in the middle, resembling a woman's vagina.
synonyms: kingking, bilat, pukik, putay, moning
Keep your pussy shut!
Ma kaon ko Monay!
I'll eat Pussy!