Is this idiom? "Chicken Run" Or this phrase does not have any particular meaning?

What does this word mean? MAULERS This word in a line from a song: "He put his dirty maulers on my long drape coat"

Why I am learning English? I study English, but my English is not very good yet. I really want to go to live and work in Australia for a few years. This is the country of my dreams. I love Adelaide. I want to stay in this town. I am very tired of the cold Ukrainian winter, I like the hot Australian climate. I want to live on the ocean, every morning, going to the beach and I want to learn to surf. I love the Australian landscape. I do not know why, but my soul drawn there :) But now I have to learn the language and get enough experience to my work. I would love to talk to all native English speakers. I also speak good Russian and Ukrainian, and I'd be happy to help you with that :)