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2.
An inexperienced bowl smoker who would make mistakes that the owner of the pipe can only laugh at... unless it involves breaking the bowl of course. If you break it, assume you bought it.
1) Bowl Noobs fail to corner the bowl when they light it, torching more surface area; or fail to pass the lighter (or worse the bowl)

2) tap the glass bowl on a glass or otherwise clashing hard surface to try to clear the ash (use a pick to scrape)

3) handle your glassware in any other way that makes the old hats cringe

4) fail to hold the carb shut while drawing the pipe, and/or leave uncleared smoke in the chamber

5) fail to pull out the slide/pull/bowl after drawing from a water pipe (aside from leaving the chamber uncleared) this makes air kickback from water pushing back up tt the bowl, spilling smoke/plant material/ash/active embers up out of the bowl

6) He who blows into the water pipe sucks the water out of the carpet. e_e

7) A decently small amount of tar/resin does get you incredibly stoned and many save and salvage it later when in need (ask before cleaning/throwing away (protip: filter/scrape/dry pipe-water and smoke it again @_@)

8) The stems you pick out of the bag also have active chemicals that work if you filter the harsh smoke, but in a group set them aside when breaking up the material to pack (some like to save these for cooking as well) don't put seeds in.

9) If you don't know or you fuck up, say something. The more we pay attention (in life), more goes around, less is wasted, and we and our equipment are safer.

10) Also remember each group probably has their own tweaks. Just be respectful.
by gen.ret February 22, 2013
 
1.
Someone who doesn't know how to light a pipe, burns their fingers trying, can't load a bowl or someone who torches the bowl not knowing any better.
Dude corner the bowl, there went all the green hits. Don't be such a bowl noob.
by swift_strongarm February 19, 2011
 
3.
Someone who puts a bowl in the dishwasher facing down with a less than 45 degree angle of attack. Hence the dishwasher can not wash the inners on the bowl.
Who's the bowl noob? CBA coming home to sh*t.
by BeanMaster April 16, 2008