CLOG UP Meaning of CLOG UP in English phr verbClog up is used with these nouns as the subject: ↑ arteryClog up is used with these nouns as the object: ↑ intake , ↑ road , ↑ street , ↑ system Oxford Collocations English Dictionary. Оксфордский английский словарь словосочетаний . 2012