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