"Smug" reminds me of the world "Smog".

Smog is a type of air pollution. The word "smog" was made in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky fog.

http://en.wikipedia.org/wiki/Smog

所有跟帖： 

• Well, now you reminded me of another word "snug" -冲浪潜水员- ♂ (2632 bytes) () 02/24/2014 postreply 23:14:43

• smug-smog-snug,chain reaction,lol... -斓婷- ♀ (0 bytes) () 02/25/2014 postreply 07:14:02