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8.
(1) ' n. Any of various poisonous American snakes, of genera Crotalus and Sistrurus, having a rattle at the end of its tail. ' -- Wiktionary

(2) According to Kurt Vonnegut, the rattlesnake is a creature so inimical to humankind that it makes you wonder about the vaunted benevolence of the Creator of the Universe.
EXAMPLE:

' Dwayne mimicked her cruelly in a falsetto voice . . . He looked about as pleasant and relaxed as a coiled rattlesnake now. It was his bad chemicals, of course, which were compelling him to look like that . . .

' The Creator of the Universe had put a rattle on its {the rattlesnake's} tail. The Creator had also given it front teeth which were hypodermic syringes filled with deadly poison.

' Sometimes I wonder about the Creator of the Universe. '

-- From Kurt Vonnegut's 1973 novel "Breakfast of Champions" -- Chapter 15 (page 159 - 160).
by Dinkum August 28, 2013
 
9.
A girl that seems sweet and nice, but will put out.
Boy 1: Jane is really hot, but I don't think she'll do anything.
Boy 2: Are you kidding? She's a total rattlesnake.
by GravityPurple April 27, 2008
 
10.
To RattleSnake someone is to leave a little smoke in the water pipe after one hits it. The stale smoke that is left in the device will choke the shit out of the next person to hit it.
o u son of a bitch!!! you rattlesnaked me , there was still smoke in the damn thing ( cough cough gag)
by ingram foo February 25, 2011
 
11.
When someone squeezes your penis between their buttcheeks and flatulates.
That chick was crazy and totally rattlesnaked my shit last night. ratylsnake, rattlesnak, snake, rattle, rad.
by Ryan h, machesney park il January 30, 2011
 
12.
to leave a coiler on someones pillow before they go to sleep. Hide in there closet and make a rattle snake sound (when the person is in the room or has seen the coiler on there pillow)
"i left a rattlesnake on my brothers pillow"
by Tea Bag monster !!!!! August 13, 2006
 
13.
Noun - Pronunciation Key : RAT-tuhl-snayk

One who starts problems by spreading around lies and gossip.
"Dude... Watch out for Katrina, man. The chick is a total Rattlesnake."
by The Main Event September 20, 2005