I certainly do not advocate the Uban Dictionary, but I think they've got it pretty much right in this case:
http://www.urbandictionary.com/define.php?ter...

is it a kind of smacking t-sound, with the tip of your tongue at the back of your front top teeth?
I still don't really get it. (especially with regard to this now: "From: The Independent - London Date: January 11, 2001 Author: Jason Bennetto Crime Correspondent | Copyright 2001 The Independent - London.

"BEING ARRESTED and held in custody for sucking his teeth in an aggressive manner was the final straw for Delroy Lindo and his family. Mr Lindo, 41, considered it the latest example of police harassment which has seen him being stopped or arrested 37 times in the past eight years.
The "teeth-sucking" incident in north London last year was also the turning point for the Metropolitan Police. "

It's like wearing a loud shirt in a built-up area, isn't it?

Forgive my utter uselessness, but what does the loud shirt have to do with the built-up area?

bacon: http://www.youtube.com/watch?v=nZoSqPxsNtU
watch it and weep...

Lurverly.

That sketch is not as far-fetched as it might seem. According to an article this week's Spiegel, a bloke was arrested on Times Square in New York for standing on the pavement looking at the sky at 2 o'clock in the morning. He was in the first instance convicted of disorderly conduct and aquitted only after he took the matter to appeal.

Tonio K, der Sketch ist schon über 20 Jahre alt, und der Verhaftungsgrund "sucking his teeth in an aggressive manner" war 2001...

Aber bitte, gibt es noch jemand, der versuchen möchte, mir "suck one's teeth" zu erklären? Nach der Urban Dictionary Beschreibung kommt bei mir eine Art Zungenschnalzen raus, ist es das? click your tongue?

Vielleicht das hier:
http://rootsouttacontrol.de/modules.php?op=mo...

To suck your teeth in annoyance or disapproval, I believe you close your mouth and purse your lips firmly, then suck in the air from behind the lips and twist your mouth in an expression of disgust. When doing the sucking you can also let your lips come unstuck, as it were, making an inward hissing noise.

@Spinatwachtel, I would understand it to mean jamming your tongue up behind you top front teeth and then sucking so as to produce a kind of squeaky hissing sound, which I guess is the same as what you were saying in #2.

By the way, I don't quite get what the dates of the various episodes got to do with it. I hadn't read your #2 properly when I wrote #6, and thought the teeth-sucking incident was fictional - so I was just making the (redundant, as it turns out) point that such over-zealous cops do actually exist.

oh, alright, Tonio. Apparently the teeth sucking wasn't fictional, and 2001 is moderately recent-ish to qualify as "still exists". Hence my response.

Who knows if the sketches trumped-up charges were entirely fictional...

incidentally, 20 year ago, when I were a lad...and in Scotland, any of these charges were quoted as a synonym for trumped-up charges with racist motivation - is that still the case or do the young people of today no longer understand "walking on the cracks of the pavement" and "being in possession of bulging lips and curly black hair" like that?

When you were a lad? I somehow thought you were female.

Can't answer your question for certain as I don't live in the UK. However, I see no reason why the sketch shouldn't be understood by the young people of today - after all, the problems it addresses still exist.