If someone or something pops up, they appear in a place or situation unexpectedly. (INFORMAL)
She was startled when Lisa popped up at the door all smiles...
= appear
PHRASAL VERB: V P
see also pop-up
If someone or something pops up, they appear in a place or situation unexpectedly. (INFORMAL)
She was startled when Lisa popped up at the door all smiles...
= appear
PHRASAL VERB: V P
see also pop-up
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012