"Full-monty" is a British slang term that originated from a British film of the same name. It refers to the act of going "all the way" or doing something to the fullest extent possible. Some synonyms for "full-monty" include "whole hog", "whole enchilada", "complete package", "total immersion", "full-on", and "utmost effort". Each of these phrases conveys the same idea of putting in maximum effort or going all the way. These synonyms can be used interchangeably in various contexts, whether it be in regards to work, sports, or any other situation in which one wants to give their all.