Wiktionary
alt. (context idiomatic English) Someone who take after one of his or her parents. n. (context idiomatic English) Someone who take after one of his or her parents.
Wikipedia
Chip Off the Old Block is 1944 American film starring Donald O'Connor, Peggy Ryan, and Ann Blyth.
The son of a strict Navy man, O'Connor falls in love with a girl from a performing family (Ann Blyth). In the end, the families learn to accept their differences and they are allowed to be in love freely.
Usage examples of "chip off the old block".
The father sees no threat to his dominance and thinks of the son or daughter as a chip off the old block, to use an expression.
Smelley, who owned a boardinghouse in the Commercial Road, told me that I was a chip off the old block and that in her opinion one day I might even be as good as my granpa.
He'd been annoyed by teachers at Georgetown who said he was a chip off the old block, and at first taken some offense at it, then reminded himself that his father wasn't all that bad a guy.