Just a little more info:
"Crea" is Latin, it is the root word for create, creator (i.e. God).
http://www.english-for-students.com/crea.html
Cher is from French, it is a word of affection, probably literally means sweet, the English word "Cherry" is presumably derived from it. "Chery" is a last name in French. The English name "Cheryl" is derived from it. We use this in English, i.e. "Sweet Marie", "Sweet Jesus", etc.
So a little more fluidly, "McCreachery" means "Sweet Son of God". It is a
double-entendre with the word "creach" to describe the demise of the teams he's played for, because "Creach" means "fall from grace". Get it?
These OJ producers sure were smart! Bravo to everyone who participated!