Game Of Thrones: 12 Easter Eggs You Probably Missed In Season 5
6. Wun Wun
It's something of a shame that the show has thus far avoided introducing some of the more fantastical beasts in the White Walker army (aside from mentions of ice spiders), but at least the astounding Hardhome re-introduced giants, in the form of Wun Weg Wun Dar Wun.
There was also a mention of his nickname - Wun Wun - not only a nod to a missing character from the books (Leathers), but also a reference to George RR Martin's other great love, American football. Martin has added references to the New York Giants to the books (including the use of Triarch Belicho's history as a parallel to the Giants' Super Bowl Victory over the NE Patriots), and inevitably the Wildling ally giant is another.
He's called Wun Wun in homage to former Giants quarterback Phil Simms, who was number 11.