What does lotus root slice mean?

Not lotus root slices, but eating lotus roots. Eating lotus root is a popular online word, which means "ugly". The homophonic pinyin "chou" originated from Baidu Post Bar. A netizen posted a post asking if the characters in a game were ugly, and accidentally labeled "ugly" as "eating lotus roots".

Eating lotus root can show ugliness, which is the wonderful thing about Chinese Pinyin. When the syllables with the initials zh, ch, sh, R, Z, C and S and the vowel I are quickly connected with the zero initial, they will be combined into one word, such as eating lotus root, being ugly, being kind to teachers and being deep.

The wonders of Chinese Pinyin:

When the syllables with the initials zh, ch, sh, R, Z, C and S and the vowel I are quickly connected with the zero consonant, the phenomena of eating lotus root, being ugly, being good to the teacher and being deep will appear.

Some syllables don't have initials, but only one vowel becomes syllables independently, such as ai, yi, Wu W and yu, but there is often a slight friction component at the beginning of the syllable. This kind of fricative sound can generally be described by semi-vowels, which means that this syllable also has components similar to initials.