Said to someone who fails to comprehend his or her own present situation. Often perceived as a misinterpretation of past events or activities. It is advisable to remind the person in question (if you appear to be in verbally discernible range), of his or her mistake to avoid any forthcoming embarassments on his or her part.
(Brief exchange prior to an imminent Science Test)
Karl: Hey Ev! *shakes his hand* Fail with honor!
Evan: Thanks. You too.
Karl: Ayan! *shakes his hand* Fail with honor!
Ayan: What?! Hey, I'm passing!
Karl: Ughh.
Evan: Haha, head up in the clouds Ayan!
Any period of time where you and your friends go out without initial purpose or expectations. Usually in the early hours of the morning or late at night, side quests last as long as everyone is still out away from their home, dorm, or common meeting space. Side quests usually happen after a "main quest," scheduled hang out or party and usually feature less people than the original main quest.
"I'm bored but idk what to do... wanna just go out?"
"Hell yeah man let's go on a sidequest!"