expression, noun
last part of a poem; latter half of a verse
Refers to the second half of a traditional Japanese poem (especially the last 7-7 syllables of a tanka) or the latter part of a Bible verse. Often contrasted with 上の句 (かみのく).
百人一首の下の句を聞いて、上の句を当てるゲームがある。
There is a game where you hear the last part of a Hyakunin Isshu poem and guess the first part.