Definitions for hysterical reasons
The New Hacker's Dictionary
(also hysterical raisins) A variant on the stock phrase “for historical reasons”, indicating specifically that something must be done in some stupid way for backwards compatibility, and moreover that the feature it must be compatible with was the result of a bad design in the first place. “All IBM PC video adapters have to support MDA text mode for hysterical reasons.” Compare bug-for-bug compatible.
Use the citation below to add this definition to your bibliography:
"hysterical reasons." Definitions.net. STANDS4 LLC, 2013. Web. 19 May 2013. <http://www.definitions.net/definition/hysterical reasons>.