The American Heritage® Dictionary of the English Language, 4th Edition
verb-intransitive. Music To write or sing lyrics.
verb-intransitive. To write lyrically or in a lyric style.
v. To treat (something) lyrically; put into lyric style.
The Century Dictionary and Cyclopedia
To write lyrics or write lyrically.
Word Usage
"They close their eyes and lyricize about the near-spiritual satisfaction they get from communing with the various twigs and animal parts and different-colored dust they flavor stuff with."