Frithjof is a norwegian word for someone with an abnormaly large head. It can also be used of a person whose bodily functions mimic that of a machine.
"Hey, Frithjof, your head won't fit in there."

-"Dude, look at that guy dancing, he's a dancing machine."
-"Total Frithjof!"
by David F. Attenborough January 11, 2011
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A Frithjof is a total madlad who gets all the puss. He has a maximum level of clout and he can steal your girl at any time with no problem. He will also kill you in one second if you try to stop him.
Guy 1: Frithjof fucked my mom last night in his new Lamborghini.
Guy 2: yeah Frithjof is so cool I wish i could be like him
Guy 3: I agree, everyone wants to be Frithjof.
by pu$$ydestroyer69 May 11, 2018
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A Frithjof is a chick magnet who gets all the puss. mess with Frithjof and he calls up his homies to hunt you down. A frithjof usually gets around 700 dms from street hoes every minute.
guy 1 : hey man do you know Frithjof?

guy 2: yeah he just stole my girl.

guy 1: feelsbadman, he just fucked my mother
by pu$$ydestroyer69 April 23, 2018
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