On the pillow, on the toilet

Guess an educational phrase on the pillow and toilet can refer to the following article: Pillow on the toilet usually appeared in novels or television dramas. The pillow referred to the bed, and the toilet referred to the toilet bowl. The meaning of this word depends on the context. Sometimes it may mean that both the activity on the bed and the toilet is important, and sometimes it may just be a short description. There may be many origins for the word "pillow on the toilet". For example, in ancient times, people called the toilet "bedpan" and the habit of using the toilet on the bed "toilet". Later, the word evolved into "pillow on the toilet". In education, it might refer to the habit of students using electronic devices on the bed or on the toilet as "pillow on the toilet". For example, students might use electronic devices to check information during class, which was seen as a kind of "sleeping on the toilet" behavior.