From goutte + -y, or anglicization of (Old or Middle French) goutté, ultimately from Latin gutta (“drop (of a liquid)”) (also the ultimate source of English goutte and French goutte). Compare guttated.
A trim-middled hog will have a higher dressing percentage than a wasty, gutty, paunchy, heavy-middled hog. 1958, John M. Kays, Basic animal husbandry, page 269:
One who works in a slaughterhouse cutting out the internal organs.
Mr Donaldson continued to work during the season as a gutty in the beefhouse at the Lorneville plant, notwithstanding a high level of pain and/or discomfort which he persistently experienced from his elbow disorder. 1990, New Zealand Industrial Law Reports:
I still had in my possession thirteen sets of hickories and a good stock of gutty golf balls, […] 2013, Alfie Ward, Fairways! What Fairways?, page 182: