Being sloshed is the weed equivalent of a hangover. Some call it a weed hangover. This feeling is brought on by going to bed high. When sloshed, you feel tired, lazy, and your mind seems a bit hazy and off. When sloshed, you arent high, but you arent one hundred percent sober either.
"Dude, I dont want to go to class today, I'm so damn sloshed."
"I think I smoked too much weed, I was sloshed the whole day."