dogs that become obstacles, impeding your movement through a room, building or other location.
I would have arrived more quickly but there were many dogstacles blocking my path.
When a dog becomes an obstacle.
I tripped over a dogstacle in the dark.
Combination of 'dog' and 'obstacle'. When your dog lays down in your path - usually when you are carrying something heavy and don't see him.
I fell over that dogstacle when I was moving the shelf down the hall.
A doggy obstacle: You trip over your black lab sleeping in the hallway when you get up to pee in the middle of the night.
You: Dude! What happened to your face?
Me: I stubbed my toe on a dogstacle last night and fell into the piranha aquarium.