If you chop something up, you chop it into small pieces.
Chop up three firm tomatoes.
...chopped up banana.
= cut up
PHRASAL VERB: V P n (not pron), V-ed P
If you chop something up, you chop it into small pieces.
Chop up three firm tomatoes.
...chopped up banana.
= cut up
PHRASAL VERB: V P n (not pron), V-ed P
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012