献丑

(used self-deprecatingly, e.g. when asked to sing a song) to put one's artistic incompetence on display

to offer / to present / to dedicate / to donate / to show / to put on display / worthy person (old)

clown / 2nd earthly branch: 1-3 a.m., 12th solar month (6th January to 3rd February), year of the Ox / ancient Chinese compass point: 30°

shameful / ugly / disgraceful