Being "high" due to the inhalation of the dried leaves and flowers of the cannabis plant. Used when in the presence of people who look down upon smoking.
Steve: Hey you wanna go to the zoo?
Bill: Sure lets smoke some weed.
Steve: You at the zoo yet?
Bill: No, I'm still in line, hasn't taken effect yet
Steve: I think we've been going to the zoo too much lately
Bill: Yeah i can't remember the last week.