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1.
Dealing with an issue by removing the head of the problem, usually refering to decapitating an individual, but may include the take down of a government or corporation by removing it's leader(s).
"Sneak up on the sentry, cross the I and signal us up."

"Looking through his scope, at the Minister's head, he chuckled at the thought, when I pull this trigger, I'll have crossed the I and dotted the tee at the same time. Won't my fourth grade teacher be so proud..."

Cross the I in Iraq and get ready for a clean-up.

Cross the I in R&D and watch that company fall.
by mrhines February 05, 2010