Doing/saying anything stupid under the influence of marijuana.
Bobby: Did you leave the cardboard on the pizza when you put it in the oven?
Steve: ahh god damn, sorry man, it was a High moment. Want to just run to mickey d's for the dollar menu.
Bobby: you're driving
Bobby: Damn it steve.. i can't find my cell phone !
Steve: you're on your damn cell phone man.
Bobby: fuck man, high moment