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2.
to constantly be on someone's back; incessantly nagging and lecturing.
"I can't stand to be in the same room with him, he's such a harangutan!"
by Donda & Sandi November 20, 2007
 
1.
The nickname for baseball's ugliest pitcher, Aaron Harang.
That damn Harangutan threw his feces over 90 miles per hour!
by Aaron Harangutan April 05, 2010