Stickup, a term often associated with robbery, can be replaced with a variety of synonyms. For those looking to express the act of holding someone up for their belongings in a more formal manner, the word "heist" may come to mind. Others may use the term "holdup" or "mugging" to describe the same situation. In some contexts, the term "robbery" may also be used interchangeably with stickup. On the other hand, some slang words such as "jacking" or "sticking" are used in a more informal setting. Regardless of the chosen synonym, the term itself suggests a threatening and potentially dangerous situation.