Guessing: abundance allows them to be more selective, so the one bite is really just tasting them looking for the one that satisfies their palate. Sample enough plums and after a while you get full, or you give up.
> Because of the large pit and hard-to-separate spines, hog plums are not commonly eaten straight-from-the-branch. Some do enjoy them, however, and report a taste much like a Granny Smith apple- sweet, sour, and a little bit tangy.
> Depending on ripeness, the fruit’s flavor can vary. Its tartness and sweetness are taken advantage of in Guatemala, where the fruit is used to produce a wine known as Vinho de Taperiba.
> Eating these plums can be a challenging experience, but the reward is well worth the effort. The pulp is exceptionally juicy and gives off a somewhat distinct musk. Some report hints of turpentine and an acidic bite.
From: https://minnetonkaorchards.com/hog-plum/ :
> Because of the large pit and hard-to-separate spines, hog plums are not commonly eaten straight-from-the-branch. Some do enjoy them, however, and report a taste much like a Granny Smith apple- sweet, sour, and a little bit tangy.
> Depending on ripeness, the fruit’s flavor can vary. Its tartness and sweetness are taken advantage of in Guatemala, where the fruit is used to produce a wine known as Vinho de Taperiba.
> Eating these plums can be a challenging experience, but the reward is well worth the effort. The pulp is exceptionally juicy and gives off a somewhat distinct musk. Some report hints of turpentine and an acidic bite.