"Brace yourselves. Winter is coming." A still image of Ned with his hands on the pommel of "Ice", pointing downward with "Brace yourself, the (noun) is (verb)ing"
"It is known."
"Renly is not right!"
"Fuck The Kingsguard, Fuck The City, Fuck The King" in the eyes of the fans is the new house words for House Clegane thanks largely to Sandor for putting Joffrey squarely in his place with said words. The look on Joffrey's face afterwards is utterly priceless.
This exchange between Arya and Syrio Forel: "What do we say to the god of death?" "Not today." A newly rising variant of the phrase is "What do we say to the god of death?" "Take Sean Bean!" or "Sean Bean is over there!"
"I always hated crossbows. Take too long to load!"
YouTube has given us a new variation on the words of the Red God: "The comments are dark and full of spoilers."
The apparent lack of Rickon Stark. It's become a running joke amongst the fanbase to wager guesses where the heck the kid runs off to or what the hell he's doing when he's not around. The meme died off when Rickon had a larger role in Season 3.
"The war for Cersei's cunt" has become one on /tv/, and for whatever reason is usually accompanied by a picture of Saoirse Ronan.
Puns involving "imp/pimp" are popular with Tyrion. Tyrion slapping Joffrey is referred to as an "imp slap," and there are various pictures of Tyrion with the caption, "Impin' ain't easy." In Series 2, jokes about Tyrion now being the "(P)Imp-Hand of the King".
Hodor hodor? (It's basically gotten to the point that on any GOT related thread, somebody will post something along these lines, occasionally taking it to the logical extreme by having a post entirely consisting of "Hodor".)
Ned's obsession with honor and the lack of Rickon in the show (especially joke theories about where he is instead of Westeros) have both been pretty big around Tumblr.
Referring to oneself as "a man," like how Jaqen H'ghar speaks.
Whenever someone lists the entire Stark family line, they make sure to add Tony at the end. In addition, Jon Snow sometimes gets the My Friends... and Zoidberg treatment in these lists.
Stannis the Mannis, with the common phrase of admiration being some variant of "First off the boats/on the beach, first on the ladders/walls, slaughtering Lannister bitches like a boss and last to leave."
"FIYAH AND BLUD!"
"Where are my dragons?!?"
Fish pie has became an Unusual Euphemism for female genitalia after a certain conversation between Shae and Varys.
Jon Snow not knowing where to put it.
"You Know Nothing, Jon Snow".
After giving the Lord's Kiss to Ygritte, "You Know ONE Thing, Jon Snow"
Slow Loras Tyrellnote a pun of Loras' name being a homophone for a relative of the lemur, often including Finn Jones' head photoshopped onto the animal's body.
Jorah Mormont being "King of the Friendzone".
"Lord Twatbeard" being a far better nickname than Littlefinger.
Hi this is [insert character name] and this is Jackassnote this is a growing meme on youtube regarding any character from the show that's about to do something dangerous and stupid that it mirrors something one would see on Jackass.
On forums people who make speculations based purely on the show without knowledge of the book events are often affectionately called "Unsullied". If they make a particularly optimistic prediction, the response is usually along the lines of "Oh sweet Summer child..."
Posters in the spoilers-free Game of Thrones thread on Something Awful refer to Theon's still-unnamed torturer as Barry.
"Doesn't Matter Had Sex" note a meme based around a lyric from the Lonely Island song "I Just Had Sex" regarding a characters that has been placed or created a situation where something terrible has or will happen, but the character doesn't care as they "just had sex" thus rendering the consequences of the situation null and void. The meme has been applied to Stannis in light of his nonplussed reaction to Melisandre revealing she has drained his life energy during sex (and therefore doesn't want to have sex with him anymore- which displeases Stannnis), as well as Edmure Tully (although the show later indicates he didn't even get to have sex)
The line "If you think this has a happy ending, you haven't been paying attention" is slowly gaining momentum as fans are applying it to the entire show.
"Actually, in the book..." said by know-it-alls to those who only watch the TV show.
Theon is Kunta Kintenote Kunta Kinte was Made a Slave and was flogged until he accepted the name Toby; Ramsay beats Theon until he accepts the name Reek..
Jokes about Theon having a "Dick in a Box".
Comments to the effect that Westeros has "only two songs" (in reference to the show's emphasis on/multiple versions played of "The Bear and the Maiden Fair" and "The Rains of Castamere", including the fact that both songs supply episode titles).
Substituting "shift" for "shit" in various expressions, after a naïve character mistook the latter word for the former.
This image of Ramsay Snow has become pretty popular.
This picture of Richard Madden◊ which gained popularity after The Red Wedding with captions about how disappointed he looks now that his character has been killed off. May as well call him "The King Who Is Out of a Job.
Technically speaking, Eddard Stark died twice. note this is a rising meme revolving around Talisa's unborn possible son that she wanted to call Eddard Stark. At the Red Wedding, Lothar Frey stabs her in the stomach effectively killing her and her child and the fans in essence have cried a foul saying "Eddard Stark died twice on the show".
Although the incident being referred is technically shown in the next episode, there is a Crosses the Line Twice meme which pictures Robb or Robb with Greywind's head with a caption quoting or paraphrasing from the Macklemore song "Thrift Shop", " What you know ‘[a]bout rockin’ a/the wolf on your noggin".
It is also becoming increasingly popular for commenters on unrelated things to write something to the effect of "the Rains of Castamere starts playing" when referring to something ominous/bad that one knows is coming.