Then, Dr. Smith's quote: "Farting is a natural bodily function, and we should be able to talk about it openly," says Dr. Smith. "Farting" again has synonyms as above. "Natural bodily function" could be "biological process, innate physiological action, inherent body function." "Talk about" might be "discuss openly, address publicly, mention in conversation." "Openly" could be "transparently, without reservation, candidly."
"When asked" – "When questioned|Upon inquiry|When inquired". -FULL- little miss toots farting
"to keep on" → 3 (to continue, to persist in, to remain...) Then, Dr
"tooting" → farting