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Cost per thousand. M=1000 in Roman numerals. Generally used to quote advertising prices on the internet on how many ad impressions you can buy for a certain amount of money.
The CPM on Yahoo is a hell of a lot more than you can afford!
by SynthBaron November 26, 2003
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The vengeful act of crapping on a lover's chest while they sleep.

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2
Acronym for "College Preperatory Mathematics." A non functional method for teaching middle and high school level math.

Instead of actual textbooks, CPM classes use cheap paperbound workbooks that have absolutely nothing useful in them. While real textbooks include instructions, tables, equations, and examples that make it possible to learn by book alone, CPM books usually have none. CPM also places emphasis on (barely) supervised groupwork in the hopes that it helps students visualize mathematical concepts. Actually, all it does is destroy a student's ability to work on his/her own.

Teachers of such classes assume that CPM workbooks actually are textbooks and so don't really bother instructing students.
I have to take remedial classes in college. Thank you, CPM!
by gooberliberation March 05, 2006
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Soft and offensive. Just like you.

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3
Characters Per Minute
A measurement of how fast you can type. It measures how many characters/keys were pressed in a given time period. Typing speed is normally measured in wpm.
I can type at 400cpm!
by ong_elvin May 25, 2006
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5
CPM, n. Also spelled CP/M. An acronym for "Control Program for Microprocessors", CP/M was a text-based operating system popular in the late 70s and early 80s. Developed for Intel 8080 and Zilog Z80 machines, it was also ported to x86. Utterly destroyed by MS/DOS (which was derived from CP/M) and IBM's x86 PCs (The PC, XT, and AT). This was the OS used on the famous Osborne portable computers, remembered both for being the first portables, and having a screen smaller than a postcard.
Many people think MS/DOS was a cheap ripoff of CP/M.
by Deuce on Guard August 08, 2003
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6
Cold Pool Multiplier, your dick size as soon as you leave a cold pool, compared to the biggest it gets during sex.
I hate how Trent always strips after swimming, everyone knows he has a shitty C.P.M
by AcronymKing February 04, 2015
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7
abbr: Constant PMS

def: someone who is in a constant state of bitchiness and pycho no matter what time of the month.
Friend: "Why is that lady SO MEAN?"
Me: "Um I think she has CPMS so maybe you should just back off, it's not her fault...."
by muireled September 27, 2010
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