Top Definition
A unique carnivorous mammal that can be found deep in the western suburbs of Illinois. Characterized by a rough, spiky exterior and its ability to impersonate other mammals like it which it does due to a feeling of inferiority and lack of self-confidence. The male mercasou is near extinction due to its innate characteristic that repels its female species.
The other day National Geographic had a special on the mercasou...did you know that it is actually white on the outside but black on the inside?
by Skinny face July 20, 2008
5 Words related to mercasou

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×