I was thinking to find any use for it.Yes it is marijuana. A male plant that will not get you high. What do you mean what should you do with it?
All of those seeds of that plant eventualy will be male in result ?toss it.
and if that plant is yours (i'm always skeptic about this time of year with unknown posts/plants.. hoping it's not been found in their neighbors yard ) go kill it.
you'll be doing the neighborhood a favor by not messing up any possible nearby grows by destroying that thing..
it's male.. it will not get anyone high.. it will only pollinate and mess up anyones nearby plants.