To walk slowly and casually.

    This word is cowboy slang that is still used today. It is derived from an old British expression 'mose about', which meant 'to walk with a slouch'. 

    漫步, 徘徊(轻松地, 从容不迫地步行) 

    例：Let's mosey along over to campus and get something to eat.

    我们溜达去学校，顺路吃点东西吧。