"What ups" is a colloquial phrase commonly used as a greeting. However, there are several other phrases with similar meanings that can be used instead. For example, "what's new", "what's happening", and "what's going on" are all synonyms that can be used interchangeably with "what ups". These phrases are commonly used to start a conversation and inquire about any recent events or developments. Additionally, "how's it going", "hey there" and "good to see you" are other friendly greetings that can be used in place of "what ups". Ultimately, the choice of greeting depends on the situation and the relationship between the speakers.