hail mary
NounWordNet 3.0
Webster's Dictionary (GCIDE)
Hail \Hail\, interj. [See Hail, v. t.] An exclamation of respectful or reverent salutation, or, occasionally, of familiar greeting. "Hail, brave friend." --Shak. [1913 Webster]
All hail. See in the Vocabulary.
Hail Mary, a form of prayer made use of in the Roman Catholic Church in invocation of the Virgin. See Ave Maria. [1913 Webster]