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1.
A person who has a masculine appearance (often a woman) and tends to say words wrong. They are also commonly a math teacher.
"And now, we meishure the angle .. "
"Wow, she is such a Killiams!"
by J. Fringe December 12, 2008
 
2.
A weird girl that posts bulletins all day on myspace.
"I Can't See Any Of My Friendz Eff'n Bulletins Cuz Killiam Posts A Bazillion A Day
by Batman80 August 13, 2009