Meskatsu [mekatsu] [noun] 1. Activities that seek only a physical relationship without seeking anything in return like daddy activities. 2. A moment between two people who don't have as much love as a mistress, but who have potential that cannot be experienced with a sex friend - I don't know their names or who they are, but I can't forget the eyelids on their bodies. A stimulating intercourse between a woman who embodies all the ideal eros for a man and a man who doesn't even try to hide his overflowing desires.