Words at Play : Words For Things You Didn't Know Have Names
Definition:
punt : an indentation at the bottom of a molded glass bottle
Example Sentence:
Pouring the champagne, she held the bottle with her thumb in its punt.
Note:
Although it remains a matter of debate, explanations for the function of the punt
include strengthening the bottle and also reducing its holding capacity.
The alternative name for the punt is kick.