to be / become less good at doing sth than you were because you have not spent time doing it recently :
Don't ask me to speak French! I'm out of practice.
to be / become less good at doing sth than you were because you have not spent time doing it recently :
Don't ask me to speak French! I'm out of practice.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005