CAKE: A small layer of protective carbon allowed to form and remain in the bowl of a briar pipe. The cake protects the briar from burning but too much cake can split the pipe by causing uneven heating of the bowl.
DOTTLE: Unburned tobacco left in the heel of a pipe.
TONGUE BITE: Irritation of the tongue, usually caused by smoking tobacco that is too wet, or by puffing too hard.
MYOB: Acronym for "mind your own business." Suggested rejoinder to nasty antismokers who bother you for no conceivable reason