Grunt Speak
Butter Bar
Army
Definition
A Second Lieutenant (2LT/O-1). Named for the gold bar rank insignia and the fact that they're about as useful as a bar of butter in combat. Fresh out of OCS/ROTC and dangerously confident.
Example Usage
"The butter bar wants to land-nav without a map to 'prove a point.' Someone assign him a responsible NCO before he invades Canada."