I can easily see why he never had experienced a blow job. Also why you called him "coke can" as a standard soda pop or beer can is less than 6 inches in length but right at 8 inches in circumference. You hear a lot of stories on this site and others about guys who are beer can thick, 10 x 8 or even 12 x 9 but those guys also talk about how they enjoy receiving head, which simply means that they're not really that thick. If you want to know what it's like to have a true 8 inch girth in your mouth just try getting a beer or soda pop can in your mouth. I'm a big guy with a big head (wear a size 8 hat) and a big mouth but I can't get a beer can past my teeth without some pain in my jaw. And if it were a live cock that same beer can size my teeth would be scraping the skin right off of it.
One of the thickest cocks I've ever sucked was definitely a "chode", based on greater circumference than length. It was about all I could handle for girth and no more than six and a half inches in length. The first time I encountered that beauty was at a bathhouse up in Denver and I enjoyed a couple of extended sessions with my mouth filled with that phat phallus. Later, back in my hotel room with the memory of that monster filling my mouth still fresh in my mind, I experimented with the various containers available to me and found that a vitamin supplement bottle in my collection extended my jaw to the exact same degree. After returning home I measured the vitamin bottle with a pair of calipers and it was right at 2 and 7/32 (2.219) inches in diameter. If you do the math that equates to 6.97 inches in girth. But, like most cocks I've known (including my own), this baby had a bit more width than depth which fits the mouth more easily than a true cylinder. So the fact that my jaw opened to the same degree for the vitamin bottle as it did for the real thing tells me that his cock was at least 7 inches in circumference, probably a bit more.
ST