When it was used several times during the vice-presidential debate ...
Lookups spiked on October 11, 2012.
Vice President Joe Biden used the word malarkey several times during the vice-presidential debate with Congressman Paul Ryan.
Malarkey means "insincere or foolish talk" or "nonsense."
Biden and Ryan share an Irish heritage, and malarkey is associated with Irish-American English. The word's true origins are not clear, however: the word resembles an Irish last name (sometimes spelled Mullarkey) but could have come from a similar-sounding Greek word or even Irish slang. One thing is certain: the word was used first in America, not Ireland.