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1.
City in Southern California, in Orange County.

"A Pleasant Place to Live."
I live in Placentia.

(Duh?)
by breakingthepain July 31, 2008
 
2.
Suburbia, nice town, nothing to do though
Man, I live in Placentia. Talk about boring.
by Rockerdude182 July 19, 2012
 
3.
amount of time longer than a millenium.
Nikki- I take shits once every millenium!
Kacey- I take shits every placentium!

Kuyler- Girls Poop?
by kaceeee :) February 20, 2012