The idea of Squeak "Bons Mots" [note: the correct plural in English does retain the "s" in both words of the phrase], literally "good words", are to be little bits of code (2, 3, or up to 10 lines) that do something interesting, or unusual. Maybe something unique to Squeak, so you won't find it in other Smalltalk books. Maybe it's just a neat, cool thing that makes you want to dig into Squeak.