wail like a banshee
Scream shrilly, as in Terrified, she wailed like a banshee. In Irish folklore, a banshee is a spirit in the form of a wailing woman whose appearance is an omen that one member of a family will die. The simile dates from the late 1800s.
like a boss
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Like vs. Like-Like: A Look at Reduplication in English
You can like someone, and then you can LIKE-like someone. These two things, though they both involve liking, have different meanings. The first one could mean that you like a person as a friend or you have a crush on that person, depending on the context. However, the second type of like—the LIKE-like—unambiguously implies that you have a crush. What’s happening here when like is …
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.