on 9

A foul language term in Cantonese , mainly used in Hong Kong.

When someone did something stupid or doing something silly. We will usually call them " on 9 " - Which means " stupid penis " in english.

the number " 9 " is from the pronouciation of " penis " in Cantonese.

An excellent word for saying this to people in Hong Kong.

Mr.Tung is an on 9. ( Mr.Tung is a stupid penis )
Don't be on 9 la. ( Don't be stupid )

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9/9

In front of a certain or said individual.

He cheated on her 9/9

:9

Something you type accidentally when you mean to type :( but don't hit the shift key.

Person 1: my grandpa just died.
Person 2: :9
Person 1: wtf is wrong with you?!?1

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:9

A "smiley" similar to :P, but meant to indicate something appetizing or drool-inducing. The 9 forms both the smile and the tongue of the face. Often used in chatrooms.

<Village Idiot 472> you're a cock-sucker!
<MEsoHOORNY> :9

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.9~

A number equal to 1 to anyone who understands math.

Topic should not even be a debate, however, it is understandibly quite hard to accept by some.

1.) All sequential repeating decimals can be expressed as the repeating series divided by a 9 per each digit.

For example, 3/7 = .428571~
Thus, 428571/999999 = .428571~
Therefore, 428571/999999 = 3/7

When we apply this rule to .9~:

9 is the repeating sequence. We put it over an identical number of 9's, which is one 9, thus giving us 9/9, which is 1.

2.) All rational numbers can be expressed as a/b with a and b as integers. .9~ is a rational number. Thusly, it can be expressed as a/b. 9.~'s a/b expression is 1/1. To all those who disagree, I challenge you to find another possible way that .9~ can be expressed as a/b.

3.) For any two numbers, there is an infinite number of other numbers that fit between them.

Example:
1.08, and 1.09.

1.081, 1.0801, 1.08001...

There are no numbers that can fit between .9~ and 1. thus, they must be equal.

Demonstrations:

1.)

Define x as .9~
x = .9~
10x = 9.9~
10x - x = 9
9x = 9
x = 1

Thus, .9~ = x = 1

2.)
1/3 = .3~
1/3 X 3 = 1
.3~ X 3 = .9~

If .3~ and 1/3 are equal, identical operations on them result in an equal product. Thus, .9~ = 1.

ARGUMENTS:

".9~ is not equal to 1, it gets closer to 1 with each 9 added but never reaches it"

Reply: .9~ is a number. This means it has value. The value of .9~ doesn't "get closer" to anything. It is a number, and has value.

"If .9~ equals 1, then doesn't 1.9~ equal 2, 2.9~ equal 3, 3.9~ = 4, and so forth?"

Reply: Yes.

"There is no point at which as certain number of 9's makes .9~ equal 1."

Reply:

Of course there isn't. If there were a point at which a certain number of nines "made" .9~ equal 1, then it would not be .9~ that equaled 1, just the decimal with enough nines to reach that point.

A "certain number of nines" directly contradicts the concept of an infinite string of nines. Approaching the question from this angle is entirely illogical.

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9 to 9

Way to say you hustle. Most people work 9 to 5, but you put in more. You have the 9 to 9 hustle.

I hustle. Big work posted everywhere with the 9 to 9.

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:9

An act of licking someone or something.

<%Snake^_^> dude iama get botox on my ballz like dave chappelle
<%Kylelotus> :9

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