what does Transfer of tuition and education to a spouse, parent or grandparent mean?

[TurboTaxSusan]

If you entered a T2202 on your tax return, but don't need to use the full amount to reduce your tax owing, then you can transfer some or all of the remainder to a spouse, parent or grandparent mean.  Please see this FAQ for more info on how to do this in TurboTax: 
How do I transfer my unused tuition credits to someone else?