To be "onto someone" is an idiomatic phrase that refers to someone gaining insight, awareness, or suspicion about another person or their actions. When a person claims to "be onto someone," they believe they have discovered the true nature, motivation, or hidden intentions of that individual. This phrase is commonly used to imply that someone has caught on to someone else's deception, trickery, or ulterior motives.
When someone says, "I am onto someone," it suggests they have detected signs, patterns, or behaviors that indicate the other person may be hiding something, being dishonest, or engaging in questionable activities. It implies a level of perceptiveness and intuition in understanding the truth about another person that may not be obvious to others.
This phrase can be used in various contexts, such as personal relationships, professional situations, or even in detective work. It can also convey a sense of suspicion, caution, or doubt towards the person being referred to. The act of being "onto someone" involves a process of observation, analysis, and inference, where the person evidences a growing awareness or understanding of the hidden agenda or true nature of the individual in question.
Overall, when someone claims to be "onto someone," they suggest that they have uncovered information or observed actions that lead them to believe they have a deep understanding of the other person or their intentions.
