1
general::
Also, in bad taste. Not suitable, unseemly, offensive, as in His criticism of the Pope was in poor taste, or That television interview was in very bad taste. These idioms use taste in the sense of "discernment of what is appropriate."
American Heritage Idioms
2
general::
Phrase(s): in poor taste
Go to in bad taste.
McGrawhill's American Idioms And Phrasal Verbs