1
general::
Phrase(s): can take it to the bank
Fig. able to depend on the truthfulness of my statement: it is not counterfeit or bogus; to be able to bank on something. • Believe me. What I am telling you is the truth. You can take it to the bank. • This information is as good as gold. You can take it to the bank.
McGrawhill's American Idioms And Phrasal Verbs