The " Japanese Sniper Trip " is a state of being that arises amongst those who smoke weed that is just a little too strong for them. The eyes narrow to very small slits and the person seems incapable of speech. Infact they look a lot like the archetypal second-world-war, Japanese sniper.
Joe pass the blunt man, yo glue fingers, hey!
Oh what the heck - Hey man by the look of it you are on one helluva Japanese Sniper Trip - are you able to see me at all through those slitty eyes?