Noun
something of small importance
Source: WordNetThat questionable superfluity small beer. Douglas William Jerrold
Were I Diogenes, I would not move out of a kilderkin into a hogshead, though the first had had nothing but small beer in it, and the second reeked claret. Charles Lamb
Small beer comes the last. Danish Proverb
He does not think small beer of himself. Latin Proverb
It was common for workers (including sailors ) who engaged in heavy physical labor to drink more than 10 imperial pints (5.7 litres) of small beer during a workday to slake their thirst. Source: Internet
In art and history Literature Metaphorically, small beer means a trifle, or a thing of little importance. Source: Internet