look up any word, like blumpkin:
 
1.
Fear of heights
"I can't go sky diving i have Acrophobia"
by Thunder_Monkey September 24, 2008
 
2.
The fear of acronyms. Was a popular online game in the late 90's, resurrected again recently to less popularity.
Acrophobia is the greatest game ever!
by DirkD January 21, 2007