Words at Play : Top 10 Favorite British Words, Vol. 2
Definition:
obviously disorganized or confused
Example:
"British singer Amy Winehouse, whose career has been blighted by alcohol and drug abuse... canceled all her scheduled concerts after she was jeered by fans in Serbia recently for a shambolic performance." Mike Collett-White, Reuters, June 21, 2011
About the Word:
Shambolic probably spun off from shambles; it first appeared in print in 1970.