One of a number of Popeye shorts which were sent off to Asia in the 80's to undergo the infamous redraw and colorization process.
Erroneously promoted the consumption of spinach to children. In fact, spinach is high in toxic oxalates, an anti-nutrient, which---like most plant produces---makes it unfit for human consumption.
The title is one of Popeye's catchphrases, including his own pronunciation.