癡人夢囈

Leverage is a typical MBA jargon - in this case, a noun "MBA"ed into a verb - meaning a resource is used in a particular way.

Ex. 1
"One of our main FY 2009 goals is to leverage our accumulated infrastructure investment in IT in the past few years to all our profit centers for maximum bottom line improvement."

Leverage is also used to mean borrowing on assets; hence, firms that borrow heavily are said to be over-leveraged, leading to lopsided debt-asset ratios.

Once a firm becomes overleveraged, if its board/management decides that some kind of a reversal is necessary and gets down to do something about it, it is said to deleverage.

Ex. 2
"The shitty shop headed up by tt250 is clearly overleveraged; if it is to avoid the same fate as its bleeding cohorts have been suffering of late, it had better deleverage, and do it quick!"