Kinson, I’m fairly sure he said “delirious”. That’s a common expression in America for when you think someone is delusional. Another word would be “hallucinating”. Probably he pronounced the D in “delirious” as a “quick-D” — this is common in American English. There’s no equivalent in Chinese — it’s a very lazy sound. As far as the vowel before the R, in East Coast accents, “ir” may sound more like “ar” in other American accents. Anyhow, I wouldn’t get upset about it — he was probably being friendly. Or not, either way, there’s nothing you can do now.