Check out all the different types of ned graffiti. Many thanks to Colin for supplying these.

wide spray
Whoever modelled this has s problem. At the rate of dispersion that I make out to be about an inch for every inch and a half, they'd need to use two urinals and place a bucket between them to avoid making a mess. For the integrity of this page, I'm assuming it's urine.

That's the filth told
I wasn't sure what this all meant at first, but it became clear that the symbol represented Tinty's arsehole, the policeman referred to as K did something to his arsehole (full cavity search I'm guessing), and this is Tinty wreaking revenge on K: fuck the polis to K for free (2K3).

Pink pleasure for ghost knobs
Unless you were a ghost or had a drill handy, I can't imagine having fun with this.

Now we've been told
That must have used up a lot of black marker.

Gasp! He never!
The specific nature of this gossip makes it an odd choice for graffiti. It doesn't even describe an act, only an intention. Meaningless.

He sure is!
"I think Chris phoned her. He is a tosser". Now, there really is no excuse for mistaking a control box for a mobile phone. At what stage did this person realise they weren't typing a text message? Unbelievable.

Thanks for the warning
This is true enough. Rooms that contain graffiti always stink of piss. I can imagine the average graffiti artist, pen in one hand, dick in the other, pissing and scribbling away (with the piss no doubt dispersing at an amazing rate).

Girl Power
Tut tut, why does "lesbians" have an apostrophe? I suppose they could be referring to the Rule of the Lesbian, in which case it would be correct. But I'm not giving them the benefit of the doubt.

Fancy etching
A gravestone epitaph carver obviously let his prejudices get the better of him. Oh, and his skill suddenly disappeared too.

What?
Hmm, I can't seem to make this one out. Perhaps someone can be of assistance...

You gotta be shitting me!
This says "poofs dun it here when it was ra(i)ning". This is brilliant! What a totally random statement! "Poofs dun it here" just didn't cut it. It was raining, damn you!

Tri-umphant
I'm going to guess that neither Sweaty, Tracy nor Adele know that Adele has completed the triumvirate.