pper stry n. 1 二階, 上階. 2 [the 〜, one's 〜] 《口語・戯言》 頭 (head) (cf. attic 2). ・be touched in one's upper story 気が触れている. ・He is a little wrong [off] in the upper story.＝Something is wrong in his upper story. 彼は頭が少々変だ.