ridgeling
rid·ge·ling
noun
1.
a colt with undescended testicles
Origin
From ridge + -ling, presumably from the supposition the remaining testicle(s) remain(s) near the back.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.