What is Puff ?
Puff is (noun) 1. a small breath of air or smoke He took a puff on his cigarette. Little puffs of smoke came out of the chimney. 2. out of puff having difficulty in breathing after running, etc. (informal.) After the race I was completely out of puff. (verb) 1. to blow White smoke was puffing out of the engine. He sat in a corner, puffing on his pipe. 2. to breathe with difficulty He was puffing and panting and he’d only run fifty yards.
source: Easier English, Student Dictionary Upper Intermediate Level