bopomofo

The ear worm yet annoying song that your Chinese teacher will show you two times only. Years pass and the tune remains firmly implanted in your head but the only lyrics you will remember are bopomofo.

Beginner Chinese student: Hi friend! We learned Chinese pronunciation today!
Senior Chinese student: Oh cool! Did you learn about tones?
Beginner Chinese student: No, we did *sings* Bopomofo
Senior Chinese student: *ptsd flashback ensues*