What is Yfy?
1.
An acronym for "Yeah, fuck yeah." Used as an exclamation of strong approval, most frequently on the Internet or other environments in which informal shorthand is commonly used, although 
The Hurricanes just won the Stanley Cup! YFY!!!
XD 
See 
Random Words:
1. 
Verb, Noun.  From the Eastern "ching chang chung me bungbung."  The act of "chunging" a bunghole.  This can often be..