An IM Acronym for "Parents Looking Over Shoulder".
<Joe>I got the best porno, want me to send it?
<Jack>Yeah.
<Jack>WAIT! Plos!
<Joe>Yeah, I can't believe the packers lost.
by ParkerM July 28, 2007
Ebin was a coolie that I used to know,
Now he's down with the PLO
He's Kickin' it live with the KKK;
NO JVC, no JFA
by CecilAdams July 9, 2005
acronym for Please Leave On, its for important information written on school black boards so that janitors won't erase and clean it.
-----------------------------
| 1+1=2 |
| |
| p.l.o. |
|___________________________|
by Connotator May 16, 2005
a person impossible to understand.
someone who's actions are completely

irrational and nonsensical.
"who ate all the guacamole?"
"mmm, must have been a plo."

~or~
"oh that guacamole just got ploed!"
by doctabootnocka July 23, 2009
The Palestine Liberation Organisation. They oppose the terrorist zionist regime which has stolen most of their land.
The PLO don't stand much of a chance against the Zionist regime, as their terrorism is supported and funded by the USA.
by hez April 28, 2007
Permanent latrine orderly. A mock-title for a military assignment to undesirable, insignificant, menial and unpleasant duties.
PVT Smith found himself as PLO after his latest SNAFU.
by vicnet1942 April 5, 2010
"Palstinian Liberation Organisation". A terrorist group that became the Palestinian Authority PA which now claims to be the sole and legitimate representative of the Palestinian people. Current head is Abu Mazen (Mahmoud Abbas)
Palestinian terrorist: "Hey, it'll make us seem more legitimate if we had a government."
Rest of the world: "How bout we give you more money and more legitimecy and then you can continue opressing your own people and funding terrorism."
Terrorist: "Ok, we'll change our plo to the PA"
by Roman V November 24, 2005