那个欺负小动物的家伙真是个混蛋。

That guy who bullies small animals is such a ___dirtbag.

攀爬前，他把杂物袋系在了腰带上。

He clipped the ___dirtbag to his belt before climbing.

那些攀岩爱好者选择做流浪者，住在车里四处攀爬。

Those climbers chose to be ___dirtbags, living in vans and climbing around.