English rendering Tell outrageous lies Literal translation: “Fire a cannon”
Boast or tell utterly groundless lies.
Dictionary example 1
그는 멀쩡한 건물이 무너졌다고 대포를 놓고 다녔다.
Read the meanings, trace, then cover above the masking line and write. Uncover, choose a meaning, and make your own sentence.
Writing text대포 놓다
Explore the body parts or scenes linked to this idiom.
A silent film that writes the headword and its meaning.
Make someone a target of gossip Make someone the subject of unfavorable discussion. 
become a target of gossip To become the subject of unfavorable gossip. 
Mutter under one’s breath Speak in a low mumble so others cannot hear 
raise one’s voice sharply To shout loudly out of irritation. 
Quietly and unnoticed Stealthily, without being revealed. 
Spread a rumor Make a rumor circulate 
be utterly uninformed A coarse expression for knowing no news at all. 
2 meanings Be highly effective; fit exactly Have a very strong effect. 
Curse furiously Vulgarly, curse with all one’s might 
Now that you mention it An expression indicating one will state one’s thoughts or opinion since the topic has arisen Browse in Hangul order.
WORDROW Korean Idioms