English rendering Waste away after a sibling's birth Literal translation: “Be affected by a younger sibling”
Of a child, grow thin after a younger sibling is born.
Dictionary example 1
어머니는 둘째 때문에 첫째가 아우를 타지 않도록 조심하라 이르셨다.
Read the meanings, trace, then cover above the masking line and write. Uncover, choose a meaning, and make your own sentence.
Writing text아우 타다
Explore the body parts or scenes linked to this idiom.
A silent film that writes the headword and its meaning.
Pester like a child Figuratively, the manner of pleading persistently 
Be exceptionally beautiful For a woman’s appearance to be extremely beautiful 
Go to an adoptive family Be designated an adopted son and go to the adoptive family. 
be adopted as a son To become the adopted son of another family. 
Adopt a son Choose and take in an adopted son 
Adopt a son Choose and bring in an adopted son. 
Outdo grown-ups in shrewdness Of a child, be so shrewd that even adults cannot match them. 
Be ludicrously childish Be laughable like children’s mischief 
As one pleases Figuratively, arbitrarily change a matter as one likes, just as a candy seller stretches candy freely. 
2 meanings Lead or dominate Become the leader or an officer of a group or alliance Browse in Hangul order.
WORDROW Korean Idioms