memesmith

From meme +‎ smith.

memesmith (plural memesmiths)

1. (informal) A creator of Internet memes.
   • 2015 October 15, Darryn King, “Ermahgerddon: The Untold Story of the Ermahgerd Girl”, in Vanity Fair:

     Pictures of celebrities and others captured in awkward freeze-framed expressions got the Ermahgerd treatment too—practicing memesmiths pouncing.