1.
to move your thumbs around each other with your fingers joined together
2.
to do nothing while you are waiting for sth to happen
1.
to move your thumbs around each other with your fingers joined together
2.
to do nothing while you are waiting for sth to happen
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005