Translation of gargarizar

There were no lights on the highway and hardly any cars, but quiet a few motorcycles and funnily pedestrians walking on the emergency lane. There was a tropical atmosphere in the air, I liked it.
She even compares the hills across the station with the belly of a pregnant woman by saying that they do look like white elephants. Maybe she thinks that way but I am not really sure about that.
I will start working on it next week. You can also have a look at our site and give me some feedbacks. You know Spanish better than I do. so please be patient with our questions. I would really like to help.