one hundred and ten percent (110%)

A nonsensical quantity of effort applied to a task in order to complete it particularly well. Why stop there? Why not ask for 145%…or 1000%? Or just put a little more thought into being specific with your instruction and encouragement. You know, get out there and give it your 110%.

The douchebag who said this probably also said below the fold, End of Day (EOD), or Look Under the Covers.