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extremely fat or overweight
The lady sitting in front of me is so onomotopactic that she takes up 4 chairs.
by Verna N. September 29, 2006

Words related to onomotopactic

fat obese adipose onomatopoetic pudgy skinny stout thin
extremely, extremely fat
Check out that onomotopactic dude! He's like as big as a whale!
by Natashie Blume July 10, 2008