不猖狂算青春
[bù chāng kuáng suàn qīng chūn]
Literally, "If not rampant, it isn't youth." But it means something like if you didn't behave outrageously enough as a young person, you probably missed what youth should've been like, implying youthful years need to be full of unrestrained behaviors to make the most of it. This nickname has a sense of nostalgia, or perhaps advocacy, of boldness associated with adolescence