When a woman’s stomach is so large that it hangs down over her lady parts making her beaver inaccessible. beaver
I tried to fuck Fat Lisa last night, but couldn’t get past her beaver dam so I settled for a sad hand job.
by DickFingerDave July 16, 2018

The opposite of Cock Block...
ie: if a female were to be striking a conversation and flirtation with a male...and another female were to infringe on her territory....that is a Beaver Dam.
by janamariewjpz March 6, 2010

by pallbearer January 20, 2007

by easygoinperson January 5, 2017

Yo, I feel bad for the poor sap that has to clean up that beaver dam that Tom left in the first floor bathroom.
by Acceleratedbeats December 12, 2003

n: A large gathering of Lesbians
Guy 1: (standing in line at the bar) What is the hold up?
Guy 2: Oh, God! There's a beaver dam ahead!
Guy 2: Oh, God! There's a beaver dam ahead!
by narwhalbattle March 13, 2011

When someone intentionally or unintentionally prevents a woman from hooking up with or having sex with another person. The female equivalent of being "cock blocked".
I saw this really cute girl and my friend introduced me as her girlfriend when she meant her girl friend. She was a beaver dam.
by Tree303 November 9, 2013
