Top definition
When a bearded fellow is eating a woman out when she is on her period and the period blood gets all over the fellows beard.
Guy 1: Hey why is your beard red?
Guy 2: Oh crap my girlfriend must of given me a dirty dublin.
by Waskar January 31, 2011
Get the mug
Get a Dirty Dublin mug for your cat Manafort.

Available Domains :D