DisGRUNTled
An active-duty member of the US military i.e. Marines/Army, who is fed up with all the bullshit that happens in their daily life, ex: being treated like a child, going to the field, having to sit through safety briefs, etc etc.
1: We've got to clean our barracks room for inspection tomorrow for like 5 hours
2: Damn it man, I'm so disgruntled