Question

what do you mean by big dog

Answer 1

BigDog is a dynamically stable quadruped military robot created in 2005 by Boston Dynamics with Foster-Miller, the NASA Jet Propulsion Laboratory, and the Harvard University Concord Field Station.

HOPE IT HELPS!

Answer 2

Hey mate here is your answer》》

big dog: a notably prominent, important, or powerful person, organization, etc. Eg: Moeller is the defending state champs, so they're the big dog until you knock them off.

Hope this answer will help you..《《