a group or gathering of three or more lesbians. The term is a portmanteau of the words "birkenstock" and "flock." Birkenstock refers to the footwear commonly worn by dykes & lesbians.
When we were at Home Depot, there was a huge birkenflock of dykes standing out front near their pickup trucks.
by AMtwo November 04, 2010
by AMtwo August 28, 2009