Top Definition
A Smoker's Signature is a way to tell if someone smokes but this method is not 100% accurate but it can be used as an indicator that someone smokes.

The actual signature is that when a smoker sneezes they will not make much sound because their lungs can't hold in as much air as non-smokers can. Their lungs are often constricted as if they have asthma and therefore will not retain much air inhaled before they sneeze.
Jackie has a distinct Smoker's Signature, her sneezes are tiny compared to her swimmer friend.
by Sid Barrett February 02, 2008

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug