Dahl enjoyed alliteration, which often gave a comic effect to his dialogue. Children can use alliteration to invent insulting phrases similar to Miss Trunchbull’s phrase in Matilda, ‘you clotted carbuncle’.
Dahl often used onomatopoeia (where words sound like their meaning) such as the bad dreams described by the BFG as bogthumpers and trogglehumpers. As a class, make up onomatopoeic words to describe happy peaceful dreams.
Children can choose a recipe from a book and subvert it into a revolting recipe good enough for the Twits to eat!