A: Someone who displays a general lack of common sense.
B: A licensed motorist who exhibits poor driving ability.
C: An individual who is unknowingly behaving like an idiot.
A: Phonics is a shmohog because his wallet was in his back pocket when he thought he lost it.
B: That shmohog just cut me off!
C: The people who put up this definition are shmohogs because it took them 45 minutes to come up with the last example.