This is the 7032nd most frequent Russian word.
барабаш
"Барабаш" does not have a standard definition in Russian; it might refer to a surname or slang.
The word 'барабаш' here refers to a mythical spirit that is thought to cause mischievous events at home.
Маленький барабаш живёт у нас дома.
A small spirit lives in our house.
In this context, 'барабаш' is used again symbolically for a mischievous entity creating noises.
В детстве, мне казалось, что каждая шумная ночь – это проказы барабаша.
In childhood, it seemed to me that every noisy night was caused by the tricks of the spirit.
Here 'Барабаш' is used as a proper noun for a pet, humorously aligned with the characteristics of a mythical spirit.