dish off（回答）

UG先生からのご指名にお答えします。とは言ったものの，正直なところ手持ちの辞書にdish offという表現を見つけることができませんでした。自動詞のdishには「うわさ話[世間話]をする」（『プログレッシブ英和中辞典』小学館）という意味があるくらいですが，文脈から意味を予想するとここでは「〜を指名する」と解釈できます。次の人に「氷水を配る」あるいは「話をふる」というニュアンスから派生したのでしょうか。（Koyamamoto）

Ice Bucket Challenge: Derek Jeter dares Michael Jordan
Derek Jeter was doused inside the New York Yankees clubhouse Tuesday night after accepting the Ice Bucket Challenge and dishing off to Michael Jordan.
Jeter was sitting on a chair placed on the Yankees logo in the middle of the carpeted locker room when injured New York pitchers CC Sabathia and Masahiro Tanaka dumped a large container of ice water over his head before a 7-4 loss to the Houston Astros.
The 40-year-old Yankees captain, wearing a T-shirt, shorts, socks and sneakers, grimaced and yelled at the top of his lungs before jumping up with a smile to hug his laughing teammates.
Yankees spokesman Jason Zillo captured the video on his cellphone and the Yankees provided the footage to MLB.com before tweeting out the link.
The challenge, a social media phenomenon, is part of a program launched by the ALS Association to raise money for fighting ALS, also known as Lou Gehrig's disease. Participants challenge others on video to do it or donate money to ALS before dumping icy water over their heads.
Seconds before he got drenched, Jeter said he was accepting his challenge from former teammate Roger Clemens, actor Mickey Rourke and Yankees general partner and vice-chairman Jennifer Steinbrenner Swindal.
http://www.cbc.ca/sports/baseball/mlb/ice-bucket-challenge-derek-jeter-dares-michael-jordan-1.2741368