"Where Ones Ats" is a colloquial expression often used to inquire about someone's whereabouts. However, there are several synonyms that can be used in place of this expression, such as "Where Are You?", "Where Can I Find You?", "Whereabouts Are You?", "What's Your Location?" and "Where Have You Been?" Each of these phrases conveys a similar message but with different levels of formality. It is important to choose the right synonym depending on the setting and relationship with the person being addressed. By choosing appropriate synonyms, one can effectively communicate the desired message without using an informal phrase like "where ones ats".