Meaning of the word "spare the rod and (you will) spoil the child" in English

What does "spare the rod and (you will) spoil the child" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

spare the rod and (you will) spoil the child

US /sper ðə rɑːd ænd juː wɪl spɔɪl ðə tʃaɪld/
UK /speə ðə rɒd ənd juː wɪl spɔɪl ðə tʃaɪld/
"spare the rod and (you will) spoil the child" picture

Idiom

if a child is not punished when they do something wrong, they will become spoiled or behave badly

Example:
My grandmother believed in strict discipline; she always said, 'spare the rod and spoil the child.'
Some parents still follow the old adage, spare the rod and spoil the child, while others prefer positive reinforcement.