This is a dog that appears at the beginning of the film 'The Thing.' it runs through the snow in such a way that you can't see his legs, therefore he looks like a worm.
That picture I took of my dog makes it look like he has no legs. He's a wormdog.
by the cheart August 20, 2009
1 more definition
To squat and grind, like a dog with worms on one's face, while having a dirty rectum.
Dave: Yeah mate, i got drunk last night met an old dirtbike, took her home and she did the wormdog on my face.
by Sean Gibson April 30, 2007