Coasties
Coasties is a colloquial term, particularly in the United Kingdom, used to refer to members of the Royal Marines. This informal designation highlights their historical and ongoing association with naval operations and amphibious assaults. The term is widely understood and used by both the public and those within the armed forces.
The Royal Marines are a part of the British Armed Forces and are renowned for their amphibious
While the term is generally affectionate and used without derogatory intent, it is a non-official nickname.