名詞 wish-wash:

1. any thin watery drink
2. nonsensical talk or writing
   同義詞：folderol, rubbish, tripe, trumpery, trash, applesauce, codswallop

wish-wash

n.Informal （名詞）【非正式用語】
Speech or writing deemed banal or foolish.
空洞無聊的話或文章
A thin, watery drink.
淡而無味的飲料

來源：
Reduplication of wash
wash的重迭