bummer
n.β Β«Sometimes, in spite of all our encouragement, a ewe will refuse to accept her lamb.…Some people call the rejects pet lambs, but other shepherdsβincluding usβrefer to them as bummers. Sure, theyβre cute when they follow you everywhere, but the toddlers are also real nuisances to any busy farmer!Β» ββLiving Through Lambing” by Elora McKenzie Mother Earth News Jan.-Feb., 1982. (source: Double-Tongued Dictionary)