Like I said I always though that was low and it's like the guidelines from medical associations and such. Also "too much" is going to be different for different people based on weight, biochemistry etc. But 14 beers is definitely excessive unless you are Andre The Giant.
There is currently no world wide consensus on how many drinks constitute a "binge", but in the US, the term is often taken to mean consuming five or more standard drinks (male), or four or more drinks (female), on one occasion. One definition states that 5 drinks for men and 4 drinks for women must be consumed on one occasion at least once in a two week period for it to be classed as binge drinking. This is colloquially known as the "5/4 definition", and depending on the source the timeframe can vary. In the United Kingdom, binge drinking is defined as drinking more than twice the daily limit, that is, drinking eight units or more for men or six units or more for women (roughly equivalent to five or four American standard drinks, respectively).