An extreme version of a freak out brought on by something completely insane, to a point where there is no option but to deny it could happen, a reference to the content of FOX's Fringe.
George: Hey!
Jim: Hey George, I just saw your girlfriend making out with your dad.
George runs off yelling.
Steve: Jim, what's up with George?
Jim: He just Fringed out over his dad rack jacking him.
Unlike the "googleslap" which means the company GOOGLE is punishing a website- this term is used when someone says something really questionable as if they knew what they were talking about and someone googles the facts and then slaps them publicly with the proof they are full of shit.
Dan said that Obama was actually born outside the USA. I googled it and then publicly humiliated him for his ignorance. I google slapped him.