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1.
cwm
a bowl-shaped hollow at the end of a mountain valley. One of the three words in the English language with no A's, E's, I's, O's, U's, or Y's. The other two are crwth and mwg; all three are of Welsh origin. Also used to refer to female genitalia.
Fly by the cwm. Damn! I just used a vowel!
by xyzzy April 24, 2005
 
2.
CWM
Cheese Whiz Man is someone whose personality is so artificial, that he is so far beyond cheesy, that one can only refer to his maladaptive personality as artificially cheesy. A CWM will resort to stream of insincere compliments, compassionate touching, and overall fakeness to manipulate others into performing tasks that he finds to be tedious or merely beneath him. CWM has a propensity to propose that others embark on laborious tasks, pointing out the benefit to them, while in reality, the completion of the task is designed to advance the CWM. This is known as "Getting wized".
CWM complimented me on my strong back. He also said that he really cares about my health, and that working overtime in his garden is good exercise for me. I bet he thinks I'm buying this load of B.S.!
by Jayne Dough June 25, 2009
 
3.
cwm
originating from umbc, cwm is an abbreviation for "chill with me" meaning to spend time, or hang out with somebody.
Yo Amit, cwm today!

son i haven't seen you in a minute, cwm
by JbmAnzilol October 07, 2010
 
4.
CWM
1. A whiny little bitch who follows the cool kids around.
2. A worthless pedophile drunk.
1. That Anglesault is such a CWM.
2. Kurt Cobain was a worthless CWM who married his horse, and killed himself.
by Plushtar February 23, 2004