CREEP UP ON SB


Meaning of CREEP UP ON SB in English

1.

to move slowly nearer to sb, usually from behind, without being seen or heard :

Don't creep up on me like that!

2.

to begin to affect sb, especially before they realize it :

Tiredness can easily creep up on you while you're driving.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.