After inadvertently knocking on Olive's head, Popeye puns, "I didn't know I was knocking on a Dumb Dora." Dumb Dora was a comic strip published and distributed by King Features Syndicate (which also handled Popeye) from 1924 to 1936. "Dumb Dora" was originally an American slang term for a foolish woman, and the strip helped popularize it.
Eugene has a taste for orchids as a snack, shown here. At the time, orchids were still considered quite an expensive and sophisticated bloom, not usually seen in everyday settings.
Just before Popeye breaks through the park wall, a dark figure with a fanciful cat type face is glimpsed in the lower left of the screen.
Popeye doesn't eat any spinach in this short, but the Jeep eats an orchid.
One of a number of Popeye shorts that were sent to Asia in the 1980s to undergo a redraw and colorization process.