Definition from Wiktionary, the free dictionary
chubes (plural only)
- Eye dialect spelling of tubes.
- (slang) The inner workings of one's body
1962, Michael Campbell, Oh, Mary, this London:
- He had his back to me, and was coughing, and I saw that he held a peculiar cigarette with a long cork-tip in his right hand. "It's me chubes," he gasped, "It's me chubes" and I knew that all was not well.