Thats funny. My dogs do that only when they have an object in their mouth and I throw a different object.
At feeding time I say “Ya’ll ready for a can?” and they come running.
“Can” is a word that makes them perk up and turn their heads sideways at me and they go stand in their spots in front of their bowls. They know what “can” means.
I can say...”Yeah the weatherman predicted rain ..CAN..” and they perk up.
Same thing with “ride” or “outside” or “kitty”
Sorry Bah, I didn't make the list...
My English Springer, deceased a long time now, would go nuts at the words “hunt”, Gun”, “shoot”, or almost anything related to hunting.
If he saw any one of us getting our shotguns out he would be at the van in a heartbeat. He would place himself on the porch so he could watch the van and the road down to the woods. If we tried to sneak out the back door and around the neighbors house he could still see us just before we would enter the woods and would be by our side in less than a minute.
I miss him.