1. A foolish or stupid person.
2. A person of profound mental retardation having a mental age below three years and generally being unable to learn connected speech or guard against common dangers. The term belongs to a classification system no longer in use and is now considered offensive.
1. My mom did drugs when she was pregnant and now I'm a certofoed.
"Stud-hoss" is, loosely, a spin of hoss. It's also a mocking of the colloquial pronunciation of "stud horse" by a redneck. A stud horse is, of course, a horse whose sole purpose in life is to breed. You should only say this about yourself, though.