Can mean simply

1. Walking (as above tbh)

but also describes

2. An over-exaggerated style of walking characterized by a kind of swaying bouncing motion(ok that's not the best description just think almost comically exaggerated-walking) bearing a confident stance.

Most commonly employed by rude boys (and I mean the chav kind not the ska kind) seemingly to convey a "I'm the man!" persona but often overdone to the point of looking like an idiot.

All the same a slight bowl can help to make you appear confident (if only in the eyes of chav's) and can minorly improve your chances of getting started on by a gang of rude boys (as opposed to shuffling past nervously) I justify "the bowl" because being from essex(one of the lovely chav heartlands of england) I'm told by mates from nicer parts of the country that I sometimes have a slight bowl (albeit a subtle one)

My message bowling is ok, by all means cultivate an air of streetwise confidence but just try not to look silly.

ps I'm not anti-chav (some of my best mates fit well into that category) my comments simply reflect that I've never seen a skater/punk/greebo with an excessive bowl or for that matter one that will try to start a fight with a complete stranger...

and your probably still thinking what is a bowl?

the part of a marijuana (weed, pot, ganja, etc.) pipe in which the marijuana is placed (packed) to be smoked. it may have a little hole (carb) on the side of it, which you cover while you are inhaling the marijuana smoke while holding the whole pipe and smoking.

Very simple device, used to hold unstable food.

bowl (n): the indentation in a pipe (generally a marijuana pipe) in which the marijuana itself is placed

The part of a device for smoking marijuana that hold the weed itself.
The pipe itself is NOT called a bowl. That is a common mistake; stop making it. Call it a pipe or a glass piece, but don't call the whole device a bowl around anyone who knows anything if you don't want to look stupid.

Contrary to all other definitions of "bowl" on Urbandictionary. It's something you eat cereal out of.

Bowl is the name for a pipe that weed is smoked out of. While it is technically the term used for the area in which the weed is packed, it is a term experienced potheads use for the whole pipe, because pipes are generally associated with flavored tobacco and grandfathers. If you're trying to impress a pothead with your extensive knowledge of smoking vocabulary, you should therefore use this term, or the widely-used term piece (also associated more with weed than tobacco).

An idiotic way of saying the verb 'to go'