Posted by R. Berg on January 10, 2001
In Reply to: Fell off the roof posted by JoAnn Turtle on January 09, 2001
: My Aunt who came from England used this phrase for two meanings . Sometimes it was hard to figure out exactly what she was intending fof it to mean . One meaning was that the person was or went nuts , while the other meaning was that a female had entered her period . Im searching for the origin . Thanks for any time you can give to this .
Eric Partridge, "A Dictionary of Catch Phrases American and British . . . ," identifies "I've (just) fallen off the roof" as "a US feminine expression meaning 'I've (just) started my period' and part-euph. said to a friend or a husband; late, perhaps mid-, [19th to 20th century], but by c. 1960 no longer used." He doesn't identify the origin or give the "going nuts" meaning. The "Dictionary of American Slang" doesn't have the expression at all.