lyrexia 

To get the lyrics to a song all jumbled up and wrong

"Man, the song doesn't go like that! Have you got lyrexia or something?"

lyrexia by James Whitaker (NZ) October 27, 2008

lyrexic 

One who suffers lyrexia

"I've got the words to this song all jumbled up...I'm so lyrexic"

lyrexic by James Whitaker (NZ) October 27, 2008