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 side quest!"
by king sushii November 18, 2021
The gaming equivalent of being side tracked, distracted. Becoming obsessed with an object or person because you irrationally believe that it will somehow be to your benefit later.
Billy was going to slay the evil dragon, but he was side quested by a meaningless glowing rock in the forest before he could get around to it.
by Produent May 11, 2011