"Give the pink slip" is a commonly-used phrase that refers to terminating the employment of an individual. However, there are several other phrases that can be used to convey this meaning. Some common synonyms for "give the pink slip" include "fire," "dismiss," "terminate," "lay off," "let go," and "sack." Each of these phrases implies that an individual's employment has been terminated, either for poor performance or for some other reason. When using these synonyms, it's important to consider the context and the tone of the conversation, so as to avoid causing any offense or confusion.