Any slang word originating in the United States that has become popular in other countries around the globe.
by Marty June 17, 2003
 Get the Americanismsmug.
Get the Americanismsmug. by copernicus July 10, 2003
 Get the Americanismsmug.
Get the Americanismsmug. Americanisms are ridiculous mispellings and mispronunciations of the beautiful English language by the yanks. This often involves missing vitally important letters from such words as 'herbs' (in American ' 'erbs'); maths ('math'); through (thru) and bizzarre pronunciations of words such as basil ('baysill'); mirror ('meeyor')and aluminium (alloominum). We invented it, albeit it with a little help from Ancient Romans, Celts and French so stop messing around with it!
Such Americanisms are
Billy-Jo-Bob: Yo whassap dude, yo mama got any 'erbs?
Mary-Jane-Sue: Yeah, they're in the trunk behind the alloominum foil and math books. Be careful of my sweat pants and sneakers.
Billy-Jo-Bob: Yo whassap dude, yo mama got any 'erbs?
Mary-Jane-Sue: Yeah, they're in the trunk behind the alloominum foil and math books. Be careful of my sweat pants and sneakers.
by Thingymibob March 21, 2007
 Get the Americanismsmug.
Get the Americanismsmug. An Americanism is a word, phrase or expression, commonly used in the United States, that has managed to escape from America to pollute the wider English language.
Each Americanism subverts the integrity of the English language.
by AKACroatalin June 9, 2015
 Get the Americanismmug.
Get the Americanismmug. basically consists of falsely entitled americans who travel abroad and impose their laws are universal and supersede any sovereign countries
Example of americanitis include but are not limited to
Brittney Griner and her defense that her marijuana should be legal because she has a prescription in America.
Otto Warmbier, most likely suffered from Americanitis when he stole a poster in North Korea.
Brittney Griner and her defense that her marijuana should be legal because she has a prescription in America.
Otto Warmbier, most likely suffered from Americanitis when he stole a poster in North Korea.
by MrYellowTeeth47 April 15, 2023
 Get the americanitismug.
Get the americanitismug. Brits who went to America killed the natives and were too stingy to pay the small tea tax. They went mad because of the tea deprivation and decided they wanted independence! They swore never ever to drink tea ever again.
by The Intimidating British Guy May 20, 2021
 Get the Americansmug.
Get the Americansmug. A make believe disease used to describe the condition of overweight Americans who think it's perfectly normal and acceptable to be obese.
An alarmingly high percentage of United States citizens suffer from Americanitis. More should be done to educate the public about proper diet and exercise.
by Doctor Pit March 22, 2010
 Get the Americanitismug.
Get the Americanitismug.