Synonyms of 'grub something up'
If you uncover something, especially something that has been kept secret, you discover or find out about it.
Auditors said they had uncovered evidence of fraud.
If someone uproots a tree or plant, or if the wind uproots it, it is pulled out of the ground.
fallen trees which have been uprooted by the storm
pull out by the roots
Thesaurus for grub something up from the Collins English Thesaurus