64
A blah is another name for rolled up Cannabis. It is made from the plant Cannabis Sativa. It's intended purpose is for use as a psychoactive (mind-altering) drug.

The main psychoactive ingredient in a blah is THC (delta-9-tetrahydrocannabinol), but more than 400 other chemicals also are in the plant.

Immediate physical effects of a blah include a faster heartbeat and pulse rate, bloodshot eyes, and a dry mouth and throat.

A blah is normally made by taking a cigarette and replacing out the tobacco with cannabis. A blah can also be made by using rolling paper and a filter.

It is common practice to smoke a blah in a group and follows the concept of puff-and-pass.
1. That blah got me so high!

2. Yesterday, i smoked a blah with my friends.

3. We took the weed out the blah and put it in the pipe instead.
by The Fish Who Cannot Be Found September 15, 2010
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65
1. an adolescent that does not seem to display any signs of a real personality

2. the opposite of an ogre - a person with no layers
"Margaret, will you please go find yourself a characteristic other than BLAH?"
by Alexa&Molly January 23, 2006
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66
blah emily!
by swimdude99 April 27, 2009
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67
A word used by people who are highly uneducated and do not know any other word to use
Evan, like the fucking idiot he is, said "blah" because he doesn't know any other words.
by Thompson 123 April 21, 2008
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68
The act of running up behind someone and putting your leg in front of them and pushing them forward to make them fall foward
I ran up behind that nigger and pulled a blah!
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69
that time of month. the feeling a woman has when she starts her period and has no energy.
Amy: Sarah, you want to go horseback riding?
Sarah: No thanks Amy, I've got the blahs..

Amy: Oh.... Gottcha
by blah February 19, 2015
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70
blah
blah
by ttz938 October 31, 2015
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