What does D: mean in chats?

[Sarah K]

My friend said.... "i just tore a tendon in my knee D: "

what does D: mean?

 

[cireengineering]

Big smile with teeth showing, like when you say "cheese" before you take a picture.

 

[Argyr]

It's the sad version if . If is a very-happy face, happier than then D: is a very-sad face, sadder than

 

[Smile:)]

it looks like a shocked face hun. )

 

[skittles_malk]

its a scared face..te ":" are the eyes and the "D" is the open mouth..
it can also be
D=

 

[Sarah]

It's a smiley face. =)
Only sad...

 

[xxemily95]

tilt your head to the right and look at it.
it's a sad/scared smiley face.

D: