High as a Goat
To be so high, from smoking marijuana, that you cannot move or speak. Commonly used by stoners who are bored with the commom slang. Associated with the stillness of a distant mountain goat standing peacefully.
Phil "why didnt you come by last night, we had fun."
Eric "Dude, I didnt feel like doing anything last night, I was high as a goat."
Eric "Dude, I didnt feel like doing anything last night, I was high as a goat."