The phrase "a chip off the old block" is an idiomatic expression that means someone is very similar to their parent or guardian in terms of personality, behavior, or characteristics. Full definition
The 2018 Mercedes - Benz C - Class compact luxury car is a prestigious chip off the old block. (mbsd.com)
Over the course of our conversation, he didn't talk about his lineage a lot (for the uninitiated, he's the eldest son of the legendary Sir James Dyson, founder of the multimillion dollar enterprise that is Dyson), but it became easily evident to me that he was a chip off the old block all the same - he is, after all, much like his father, an inventor, designer, and entrepreneur in his own right. (entrepreneur.com)