also: どんけつ
noun
tail end; last person; dead last
Refers to the very end of a line, queue, or ranking; often used for the last person to arrive or finish. Casual but not inherently derogatory.
彼はいつも行列のどんじりに並ぶ。
He always lines up at the very end of the queue.
マラソンでどんじりだったけど、完走できて嬉しい。
I was dead last in the marathon, but I'm happy I finished.
noun
Only with reading どんけつ / ドンケツ
Vulgar slang for buttocks; derogatory and restricted to the reading どんけつ/ドンケツ. Not used in polite contexts.
あいつのどんけつ、でかすぎだろ。
That guy's ass is way too big.
Kanji form is rarely used; the word is usually written in kana.
どんじり is a compound of どん (emphatic prefix, possibly from どん底 'rock bottom') and 尻 (しり, 'rear'). どんけつ is a variant using けつ (slang for 'butt'). The exact derivation is uncertain.