Mo-Gaze = Mo+Gaze
Mo = Hair growing on the upper lip of a male (or an unlucky female).
Gaze = To look steadily and intently, as with great curiosity, interest, pleasure, or wonder.
So...
Mo-Gaze = To look steadily and intently, as with great curiosity, interest, pleasure, or wonder at the hair growing on the upper lip of a male (preferably a hot one).
J: I'm bored and hate my job.
N: Let's go and have a Mo-Gaze, that will cheer you up.
J: Mo-Gaze?
N: Yeah, let's perv on some creepy mos.