brochoth 36B

The status of fruit husks, parts of the fruit that are not the ususal edible portion, in terms of brachoth is discussed. Evidence for the status o fthis material is adduced from orlah ( the 3 years after planting that the fruit is forbidden [ in Israel]. The status of this material in terms of transmitting tumah is also brought to bear on the discussion.
But fruit has different meanings in these various contexts.
Fruit is the edible portion of the plant. More specifically, it seems to be the definitive edible portion ( not the husk). This would seem to be the criterion for the Bracha. The bracha on the husk is adama (not shehakol, not borei pri ha'etz)
Fruit for orlah is the generative aspect of the plant, the seed is the essence of the orlah concept of fruit.
For tumah, the fruit may be an object that has a certain size and/or meets some criterion of usefulness.
For shmitah any or all of these criteria might apply.

The idea of eating hulks might be explempified by snap peas or bean sprouts ( eating immature fruit)