Acoustikize 

To take a heavy or otherwise not typically acoustic song and play it acoustic (typically guitar)

Can you believe that Jeff acoustikized Blind by Korn?

Acoustikize by ToniB April 12, 2007

acousticize 

to change a song from electric guitar to acoustic guitar, with making appropriate miscellaneous changes

The band acousticized the song so they could play it at the cafe.

acousticize by JCast January 19, 2008