in the gun

in the gun

mod. alcohol intoxicated. (see also shot.) When Fred is in the gun, he’s mean.
See also: gun
References in classic literature ?
In any case, it was decided in the Gun Club that Blomsberry brothers, Bilsby, and Major Elphinstone should go straight to San Francisco, and consult as to the means of raising the projectile from the depths of the ocean.
I can only wish that people in the gun control movement would channel their efforts in that direction rather than wasting their efforts in what amounts to rearranging the chairs on the deck of the Titanic.