( informal ) to have a strong like or dislike of sb/sth in a way that seems strange or unreasonable :
She has a thing about men with beards.
( informal ) to have a strong like or dislike of sb/sth in a way that seems strange or unreasonable :
She has a thing about men with beards.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005