Meaning of the word "when it rains, it pours" in English

What does "when it rains, it pours" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

when it rains, it pours

US /wen ɪt ˈreɪnz ɪt ˌpɔːrz/
"when it rains, it pours" picture
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