A period of 11 years. Analogous to a Baker's Dozen (the latter referring to a quantity of 13), a "Procrastinator's Decade" is a colourful description for the passage of time. See also 40 years (biblical).
Civil litigation: "This case must not be further delayed, My Lord, lest it drag on a procrastinator's decade."
by Dr. Strangevelo May 1, 2014