Means you screwed up. You should have done something before but didn't and now want permission to do it late.
NUNC PRO TUNC,
practice. This phrase, which signifies now for then, is used
to express that a thing is done at one time
which ought to have been performed at an-
other. Leave of court must be obtained to
do things nunc pro tunc, and this is granted
to answer the purposes of justice, but never
to do injustice A judgment nunc pro tunc
can be entered only when the delay has
arisen from the act of the court.