si2 fat1 laa3屎窟罅
Jyutpingsi2 fat1 laa3
Yalesí fāt la
Definition
Buttcrack; the cleft between the buttocks.
colloquialbodyvulgar
How it's used
This term is highly colloquial and carries a blunt, slightly crude tone. It is used in informal settings among friends or family, but should be avoided in professional or polite company as it is considered vulgar. The word specifically refers to the anatomical crevice rather than the buttocks themselves.
Examples
He always complains that his buttcrack is itchy.
Related words
Common mistake
Learners often mistakenly use this word in formal contexts where a more neutral term like 臀部 would be appropriate. Avoid using it to describe the buttocks generally, as it specifically targets the crack.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- QuestionsFrom yes or no questions to asking who, what, where, and when. The patterns you need to ask questions naturally in Cantonese.
- ClassifiersCantonese puts a classifier between a number and a noun, and a bare classifier on its own can mean the. Learn the common ones and how to use them.
- ComparisonsHow to say bigger than, the most, the same as, and not as good as. Cantonese uses 過 where Mandarin uses 比, and that catches a lot of learners out.



