(Remember) the Day when the Shin shall be laid bare (i.e. the Day of Resurrection) and they shall be called to prostrate (to Allah), but they (hypocrites) shall not be able to do so,
Meaning:-
Prostrate: lying stretched out on the ground with one’s face downward, especially in reverence or submission.
Hypocrite: a person who puts on a false appearance of virtue or religion.