To eat very quickly.
To draw air or any form of gas (either in a pure form, or mixed with small particles in form of aerosols/smoke -sometimes stemming from a medicament) into the lungs, through the nose or mouth by action of the diaphragm.
To draw air into the lungs, through the nose or mouth by action of the diaphragm.
An inhalation.
To eat (a great deal of food).
To store away, place out of the way, or stash, especially for the longer term.