A stupid TikTok "trend", where teenage children will steal items from a public workplace or school enviorment, like soap dispensers, urinals or sometimes even entire toilets, and call it a "devious lick", or at sometimes a "diabolical lick" or "despicable lick" and so on. It comes from lick meaning theft and devious meaning to be sneaky.
A challenge known on the popular app TikTok, where students will vandalize and steal school property. They stuff the item(s) in their backpack, in hopes of not getting caught. Some popular items being stolen consist as soap dispensers, projectors, pieces of sinks, etc.