misery guts
noun
British, informal
: an unhappy person who complains often or constantly
Lighten up: don't be such an old misery guts!
Cite this Entry
“Misery guts.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/misery%20guts. Accessed 4 Nov. 2025.
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