1) British excise-tax collector 2) One performing quality checks 
• (n.) One who gauges; an officer whose business it is to ascertain the contents of casks.
Gau'ger noun One who gauges; an officer whose business it is to ascertain the contents of casks. 
A measuring instrument. Guager and Gager are obsolete forms.
The scourge of the innocent illicit still owner, the Gauger was the person who shut down illegal stills.
Old name given to an exciseman whose job was to assist in the prevention of illicit distillation notably poteen in Ireland
Old name for an exciseman.