Merrymaking is a related term of tomfoolery.
As nouns the difference between merrymaking and tomfoolery
is that merrymaking is joyful festivities, especially as a celebration while tomfoolery is foolish behaviour.
merrymaking
English
Noun
(en-noun)
joyful festivities, especially as a celebration
Anagrams
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tomfoolery
English
Noun
Foolish behaviour
(Cockney rhyming slang) jewellery.