腕立て伏せ20回始め！

drop and give me twenty, drop and give me 20 は軍隊用語のようです。2:45 drop and give me 20.

Ender's Game Scene: "Drop and Give me 20 Wiggin"
https://www.youtube.com/watch?v=qQUoy6bpGIs  0:55 drop and give me twenty!
https://www.youtube.com/watch?v=uDF0FDXo5GI  14:18 wrong answer! drop down and give me twenty!
https://www.youtube.com/watch?v=bFtGE2C7Pxs  21:51 drop, give me twenty.

参考リンク
http://bridge-english.blogspot.jp/2013/05/blog-post_25.html  ハイタッチを英語でなんと言うか？

練習問題解答
a-9471 give me 50
b-3053 give me twenty