The phrase "dead soldiers" is often used to refer to empty beer bottles. However, there are many other colloquial synonyms used for this term. Some people may refer to them as "empties," "spent soldiers," "bottle corpses," or simply "the fallen." Another popular phrase is "bottle graveyard," which implies a space filled with discarded bottles. Additionally, some people may use more creative expressions such as "beer casualties," "bottle carcasses," or "bottle roadkill." It seems that no matter what people call them, one thing is clear: empty beer bottles are a common sight at any party or gathering.