Sentence:  “If you drinks a drop more, Miss Lucy, you'll just go like my pore young sister goed, ... Pop she did not. She swole … swole and swole.” / “You mean ‘<WSD>swelled</WSD>,' Cookoo,” corrected Lucille ... / “... "I" say she swole—and what is more she swole clean into a dropsy.” 
Meaning of the word marked with <WSD> tags:  To become bigger, especially due to being engorged.