Top definition
To be that of pertaining to the root of Bier. Some people may have this as a last name but don't necessarily pertain to this group. Formal definition includes: Looking like a gigantic penis, hoping that your girlfriend aborts your child, not paying child support, and being an overall Wigger in the 1st Degree.
Matthew has accepted his new religion of Bierism.
by Zionbeliever October 22, 2008
Get the mug
Get a Bierism mug for your daughter Riley.