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2.
To commit suicide with the intent on making the "ultimate sacrifice" for a personal cause or a belief, disregarding the thoughts, opinions, and feelings of others entirely.
He ended his life with a "Fuck you!" attitude and a one-gun salute.
by 6o66er January 05, 2009
 
1.
An erection, especially in response to an attractive person.
When the blonde with the 36DD chest walked by his table, Bob was embarrassed he had given her the one-gun salute.
by A.V. December 18, 2003