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.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

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

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

Very simple device, used to hold unstable food.

Half bat, half owl. A toy made by Cinco, it's for boys and girls, among a host of others its also suitable for. First seen on Tim and Eric Awesome Show Great Job!

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).