https://www.youtube.com/watch?v=pLgozQ7J-gQ 0:25 crumple up some pieces of paper 紙をくしゃくしゃに丸めて
参考リンク
http://bridge-english.blogspot.jp/2011/09/blog-post_02.html ぐちゃぐちゃになるを英語でなんと言うか?
https://www.youtube.com/watch?v=jNNULmgIUAs 0:19 how many words do you think a typical person knows? we estimate that people know about 15000 to 50000 words.