giggle-box
n.— «I can relate to this, as I was affectionately called “giggle-box” throughout my school years. It never took much to make me laugh; and, before too long everyone else in the class chimed in.» —“Jo Ellen Gluscevich” by Rx: Laughter Frederick News-Post (Maryland) May 10, 2007. (source: Double-Tongued Dictionary)
Further reading
A magnificent new book celebrates the richness and diversity of 450 years of written and spoken English in what is now the United States. It’s called The People’s Tongue, and it’s a sumptuous collection of essays, letters, poems...
Why does the term vegetarian cause so much confusion? Some people assume it means avoiding red meat but still eating chicken. And is there a term for a vegetarian who also eats fish and poultry? Plus, screwball comedies from the 1930s mix slapstick...