by sousi November 14, 2006
Sound used to imitate a mentally retarded person as an answer to an obvious remark or question. The person using "duh" is thereby sarcastically indicating that he/she is not retarded and the forgoing remark or question is obvious to him/her.
by martaze July 31, 2008
A basic unit of measurement of human stupidity. One "duh" is a single unit of stupidity, for example, misplacing your keys would be approximately one duh. Due to the large amounts of stupidity present in the world, more practical units are megaduhs(10^6) or gigaduhs(10^9). Still larger units such as exaduhs(10^18) or yottaduhs(10^24) are more appropriate for measuring stupidity on a global level.
by kpatz January 23, 2009
by MzQ July 21, 2003
by dj gs68 October 24, 2003
Originally an insult. It is the sound that a mentally handicapped person makes. In the beginning, the word was complete with a hand gesture of smacking your wrist across your chest. Means "obviously".
by CurlyNina October 23, 2004