Nigerian slang; Things that are done to make something seem better than it is. Acts, effects and other things to make projects, events and so on seem spectacular, outstanding, nice, or appealing.
The show was not really impressive because there was too much efizzy in their dance routines.
He doesn't really know how to drift because he was doing a lot of efizzy and making tire smoke.
The concert was amazing even though they did a lot of efizzy.
A nickname for your Elizabeth if she has an incredibly attractive amount of rizz. Most Elizabeth's are dry and boring, but when she isn't would be a great nickname for her.