What’s the meaning of Hodor in Game Of Thrones?
When the White Walkers and thousands of wights attack, Hodor bars the back exit of the cave to allow Bran and Meera time to escape. It is revealed that Hodor's disability was caused by Bran inadvertently warging into Wylis, linking the minds of the present-day Hodor and the young stableboy from the past. This mental trauma caused Wylis to seize. As he did, he heard Meera shouting the phrase "Hold the door!" through Bran and began repeating it, eventually slurring the sentence together enough to reduce it to a single word: "Hodor."
Through Bran's warging, young Wylis has experienced his own future death, destroying his mind. Hodor's entire purpose is revealed to be to hold the door at this point in time so that Bran may escape, even at the cost of his own life. While Bran and Meera escape, Hodor is torn to shreds by the wights that have broken through parts of the door, but despite everything he held the door.