Refers to Jennette McCurdy. Best known for her role as Sam Puckett from iCarly and now a country singer.
Started when one of her fans, Cary Klein called her a NerdQueen and Jennette liked the reference. Brian Kimskey helped trend it.
Usually found on twitter with a hashtag.
All Hail the Nerd Queen!
All Hail the #nerdqueen @jennettemccurdy!