1 general:: Phrase(s): *in Dutch (with someone) in trouble with someone. (*Typically: be ~; get ~.) • I’m in Dutch with my parents for my low grades. • You’re in Dutch quite often, it seems.
McGrawhill's American Idioms And Phrasal Verbs
2 general:: In trouble or disfavor, as in If I don't finish on time I'll really be in Dutch. This expression may allude to the stern reprimands of a DUTCH UNCLE. [Slang; c. 1850]
American Heritage Idioms