a way to describe the degree of sexual arousal as a result of a given sight, situation, or circumstance. Usually used as a way to describe a very high level of sexual arousal.
The Hornacity level in the room hit a high point when the speaker took her top off and shook her tits at the previously bored audience. Now awakened, the audience licked their chops with hornacious desire.
A nasal defect in which skanky smells of shit and piss usually prevent things like flowers and baked bread from smelling properly to the smeller. Either that, or the person (his or herself) is the one who smells like shit, and thus blocks out other more pleasant smells.
Jane was diagnosed with astinkmatism last year. It's shitty for her. But, as a raunchy old man once told me, "the smeller's the feller".