The Tengu was originally considered a mountain god, but it gradually transformed into the image of an arrogant and mischievous yokai. Therefore, this emoji is sometimes used to describe someone who acts arrogantly, though not necessarily with malice.

In Japanese culture, the Tengu's long nose symbolizes conceit and arrogance. So, when someone is showing off, you can send this emoji to convey the meaning that "arrogance will make your nose grow." It's a Japanese yokai with different characteristics from the Korean "Dokkaebi."