The term "GP bomb" stands for "General Purpose bomb." It is a type of large bomb that is used in military contexts, typically weighing between 500 to 2,000 pounds. These bombs are designed to create a powerful explosion and have a metal casing that breaks apart when it explodes, causing additional damage due to the fragments flying out.
In military discussions, GP bombs are often compared to other types of bombs, such as precision-guided munitions, which are designed to hit specific targets with high accuracy.
While "GP bomb" primarily refers to military weaponry, "GP" can stand for other things in different contexts, such as "general practitioner" in healthcare.
There are no specific idioms or phrasal verbs directly related to "GP bomb," but you might encounter phrases like "drop a bomb" in a metaphorical sense, meaning to reveal shocking news.
In summary, a GP bomb is a type of large military bomb designed to cause significant damage through both its explosion and the fragmentation it creates.