Beer pressure comprises a set of group dynamics where by a group of people in which one feels comfortable may override the sexual personal habits, individual moral inhibitions or idiosyncratic desires to impose a group norm of attitudes and/or behaviors, mainly pertaining to the ingestion of beer during working hours.
Like peer pressure, beer pressure is the feeling of being pressured into drinking more beer than one would like to because his/her friends are doing it.
I'm feeling a little dizzy already after this fifth beer, but my friends are still going and I'm beginning to feel the beer pressure..
"David and I went to the publast night. I had little money, but he was pouring rivers of beer in his gullet. So I ended up drinking 3 pints of Gösser too."
"You must have felt so compelled... I know that feeling of beer pressure when I hang out with my friends."