Carioca sounds very plausible, given the phrase ``dancing the [ karaoke ]'' and the following mention of the nightclub. (Just before they'd gone to a Chinese restaurant, making for even more etymological confusion.) They pronounced it two ways, too, carry-oh-kee and carri-oh-kuh, either of which seems plausible for an Arkansas accent pronunciation of either word.

I usually take my old-time radio as it comes, but specifically tracked this one down so I'd know I had the reference right. I should be able to pin down an airdate soon, but program logs are maybe about as disorganized as you'd think.