An activity where several men grab condoms from a hat in which some of the condoms have had holes poked through them. They proceed to run a train on a girl. The winner is anyone who doesn't catch chlamydia.
Lindy is going to go out merbrewing tonight. She is an ideal merbrewee as her vagina is so laden with STDs, that they have actually evolved. She is the first known human being to possess 'super-AIDS'.
by Reginald Taterpossum June 5, 2010
Get the merbrewingmug.