Whenever you are just so bored that you get out your ukulele and learn the lyrics and chords to every song that pops into your head for a while until you realize that you've been going at it for hours...
"Why has Sierra just been sitting there playing random music for over 2 hours?"

"She's got nothing better to do. She's in a ukulele trance ."
by SoStupidI'mDangerous October 31, 2011
Get the Ukulele Trance mug.