Nose Mucous Insect

I have been toying with learning Chinese, and I happened across one of those amusing intersections of my interests on a blog from a Canadian living in Hong Kong.  He was discussing what to call a pesky kid:
“First, Cantonese has the basic equivalent, beih tai chuhng (鼻涕蟲), literally ‘nose mucous insect’, which is slang for [...]