The natural or acquired skill of cramming knowledge into one's brain via intense periods of revision in the final moments (most frequently days or hours before an exam).
I got an A* in English from pure cramability.
Man, my aspiration in life is to have cramability as good as yours!
"We got a brand-new gateway from Comcast, but still only have wireless crapability -- every YouTube video freezes every five seconds."
Originally from Arrested Development: GOB's mispronunciation of "wireless capability," when listing Michael's ideas for Sitwell homes: "Number 32: Wireless crapability, that one explains itself."