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
British broadcaster, comedian, and logophile Stephen Fry offers a helpful if tongue-in-cheek suggestion in his newsletter The Fry Corner: Let’s all write AI, the shortened form of artificial intelligence, as Ai. Fry reasons that the upper-case...
Debbie from Keokuk, Iowa, shares a funny story about her family’s tradition of speed-cleaning the house if guests were coming over. Her mother would declare, “Quick, guys! Whited sepulchre approach!” Her use of the term whited...