Gigglemug
First attested in the Victorian Era, from giggle + mug https://en.wiktionary.org/wiki/gigglemug
Poked Up - A Dictionary of Victorian Slang (1909) - https://publicdomainreview.org/collection/a-dictionary-of-victorian-slang-1909/
That 1909 book is titled "PASSING ENGLISH", which is a great metaphor, how language and metaphor systems (Bible verse John 1:1 metaphors abound) are passed down and around the world.
J. Redding Ware, Passing English of the Victorian Era, a Dictionary of Heterodox English, Slang and Phrase (London: Routledge, 1909).