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1.
Conjunction between the words Frankenstein (one of the main characters in the homonym novel written in 1818 by Mary Wollstonecraft Shelley. He is described as an eight-foot-tall, hideously ugly creation of Dr. Victor Frankenstein) and Teen (teenager)

Is used to describe a person between the ages 15 to 18 (usually male) who has a greater than average height (but does not suffer any kind of genetic or endocrine abnormalities that cause a medical condition known as gigantism). Standard height size can vary depending on the country for e.g. Argentina 1.745 m (5 ft 8 1⁄2 in), Australia 1.784 m (5 ft 10 in), Canada 1.760 m (5 ft 9 1⁄2 in), China 1.663 m (5 ft 5 1⁄2 in), Mexico 1.630 m (5 ft 4 in), U.K. - England 1.776 m (5 ft 10 in), U.S.A. 1.763 m (5 ft 9 1⁄2 in).

It’s very common for gleeks to use this word to describe one of the main characters Finn Hudson (portrayed by Cory Monteith)
-Move midget I wanna get a drink - a guy insult the other at the counter of a bar

-Im not a midget! Im 5.5 ft in pretty close to the standar size you are a Frankenteen with your 6.9 ft!

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-Do you think Rachel and Finn make a good couple? - a gleek girl ask her friend

-No way he is Frankenteen!, she looks like a dwarf next to him!
by Sweet evil angel November 07, 2010