(a)a person of unquestionable size, with huge hands and appendages. Prone to quick temper and unmitigated carnage when they blow their top.
WOW!! look at the size of that lady she is some sort of Gigantor
by Killocraun December 12, 2011
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An unusually large human, not overly obese or otherwise out of proportions, and not suffering from any apparent chromosomal deficiency/surplus. Usually used to refer to individuals that the speaker is not familiar with. It is generally used in the same manner a common name would be, when that common name is unknown. The masculine version is Gigantor, the feminine version is Giganta.
"Look at Gigantor wearing his new suit over there"

"I bet Gigantor thinks he's pretty tough, picking on that little guy"
by Chazzman37 February 5, 2010
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A robot-anime which was made in 1963. It was a pretty popular anime back then.
Kevin: My dad used to watch Gigantor when he was a kid.
by Kevin Aparicio October 11, 2005
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Said to describe something/someone that is very large.
Crass Dude 1- Holy crap! Look at the size of that fat girl!
Crass Dude 2- Yeah, man, she's gigantore...
by RatchetBoo November 5, 2003
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a large, gluttonous female mammal prone to overeating and harrassing males half her size in order to prove her own sexuality
that girl who lives down the hall, you know..the one who thinks she can walk around in her little cami and pj pants fit for a 5 year old.. yeah, thats her...
by Kristen January 14, 2005
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