Meaning of the word "rear its (ugly) head" in English

What does "rear its (ugly) head" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

rear its (ugly) head

US /rɪər ɪts (ˈʌɡli) hɛd/
UK /rɪər ɪts (ˈʌɡli) hɛd/
"rear its (ugly) head" picture

Idiom

1.

if an unpleasant situation or problem rears its head, it appears or occurs, especially after being hidden or dormant for a period

Example:
The old rivalry between the two teams began to rear its ugly head again.
Whenever we discuss money, his true colors rear their ugly head.
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