Beach Pounder: A Marine (cf. Ground Pounder = soldier). Coast Guard: Shoreline foot patrol (archaic/WWII); lived on in expression: “Pound sand!” for “Get lost.”
Benny: A treat or reward, derived from “Benefit”.
OThe Navy’s Beneficial Suggestions program, a method where DON employees, and Navy and Marine personnel can make suggestions to improve various programs and operations.
Mail Buoy: A fictitious buoy that mail for a ship is left on. Usually new sailors are given a mail buoy watch for the entertainment of the more seasoned sailors.
Roach Coach: “Geedunk” on wheels. Mobile cafeteria van, often seen when on det to another base.
Just for MARINES…
Butt Kit: Ash tray. Often a #10 tin can filled with dirt or sand.
Butter Bar: Second lieutenant or ensign, from the gold color of their rank insignia. A pejorative term.
Buy The Farm: Killed.