TOA-CAH-SOH
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English
[edit]Etymology
[edit]Inversion of SOH-CAH-TOA, nearly homophonic with Hokkien 大跤嫂 (tōa-kha-só, literally “middle-aged woman with huge feet”).
Phrase
[edit]TOA-CAH-SOH
- (Singapore, mnemonic, trigonometry, humorous) Synonym of SOHCAHTOA