Definition of pig dog:
(n) :
(Australia, New Zealand) A dog bred to hunt wild pigs, typically based on breeds such as Staffordshire Terrier and English Bull Terrier.
(n) :
(typically in representations of German speech) A contemptible or worthless person.
(n) :
(surfing) A stance used for surfing tubes on one’s backhand. The surfer crouches low over a bent front knee, back leg extending back, outside hand holding onto the outside rail, and inside arm extended upwards touching the face of the wave as a guide (or digging in to slow down).
(v) :
To surf in the pig dog stance.