A super nice Filipino girl that will always take the time to listen to you and be your friend no matter what. Marthienas are hella funny, and just being around them can instantly improve your mood. They are strong and resilient, but kind at the same time.
Dude 1: Hey, bro, did you see that girl at the partyyesterday?
Dude 2: Yeah, she was so nice. She seemed like a Marthiena to me, bro.
Matthieu is a cute loving guy. He can be an asshole, and can be really selfish, but knows his limits. He is a good and sweet boyfriend, he makes everyone laugh, and is really funny. Girls like this kind of guy, because he is very manly. One other thing about Matthieu's are that they are very good in bed.
A Manthey is an awesome form of taco sauce. It is used at some Mexican restaurants, but only the real good ones- say "Cafe Frida" in NYC. A Manthey has spicy peppers with the slightest bit of sweetness.