An event or occurence that yields a win, but was so glorious and/or unexpected that even scholars could not find a word to explain it. Hence, the word winexplicable surfaced. Although rediscovered recently, the origins are believed to be Jesus Christ (when he rose from the dead) or Moses (when he parted the Red Sea).
Guy 1: "Dude, we just won the frat league championships in basketball."
Guy 2: "Really? But they had 2 club players- that's WINEXPLICABLE!"
When an event or discovery, yielding a positive result, is presnted to a person whom it concerns. This is usually (but not limited to) related to an event/discovery of a sexual nature. First coined when the 35th president of the United States of America, John F. Kennedy, found out that Marilyn Monroe totally wanted to bone him.
Guy 1: "I mean, she was pretty drunk but she definitely said that she wanted to dome you up."
John F. Kennedy: "Are you serious? Wintriguing..."