a) A stripy friend means someone or something that has stripes. This could be a person wearing striped clothing or an animal with stripes on its body, like a tiger or a zebra. b) The most thistly-looking patch of thistles that ever was means an area covered with thistles that looks very prickly and has a lot of them, more than any other thistle patch seen before. Thistles are plants with sharp, thorny leaves.