18th Amendment 

the prohibition amendment; outlawing the use & sell of alcohol or any alcoholic beverage

The 18th Amendment was not very successful.

18th Amendment by amanda June 23, 2003

18th Amendment 

The Amendment that you use when you are drunk--meaning to take the fifth.

Jim thought he would not incrimenate himself by claiming the eighteenth, but in the end he was just totally fucking drunk.

18th Amendment by piro May 18, 2003