pataquès

From the erroneous example phrase je ne sais pas-t-à qu'est-ce "I don't know what is this".

• IPA^(key): /pa.ta.kɛs/

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pataquès m (plural pataquès)

1. intrusive s, intrusive t (a type of speech error whereby a word-final /t/ or /s/ is pronounced for euphony, though it is not part of the word's spelling)
2. malapropism
3. (colloquial) jumble, muddle

• “pataquès”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.