Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Postal" Definition
idiom
Go postal Slang To become extremely angry or deranged, especially in an outburst of violence.
Source: American Heritage Dictionary
adjective
Of or relating to a post office or mail service.
Source: American Heritage Dictionary
Of or relating to the mails or the post office.
Source: Merriam-Webster
Conducted by mail .
Source: Merriam-Webster
Insanely or murderously violent .
Source: Merriam-Webster