A girl who goes to an all girls school, who because of her lack of contact with males, becomes a lesbian.  Short for Lesbian Until Graduation.  Name and practice originates from Miss Porter's School.
by Mugambi May 15, 2007
 Get the lugmug.
Get the lugmug. "Lesbian Until Graduation": girl who dates other women in college. After graduation she begins her adult life and reverts to heterosexual relationships.
"I thought Jan was gay, but at the alumni dinner she introduced me to her husband! I guess she was just a LUG."
by YouCantKillANinja October 10, 2014
 Get the LUGmug.
Get the LUGmug. by Vegimedia Vartiman August 28, 2003
 Get the lugmug.
Get the lugmug. Lesbian Until Graduation.  Used to describe women who fuck women, while attending an all womens college because they can't find a man.
by C&B November 16, 2005
 Get the LUGmug.
Get the LUGmug. Lugs in the U here are a hard-to-find. Thanks to the fact that they plan to extend thier lesbianism well into the later stages of thier measley little sorry lezass lives!
by hytham_hammer October 29, 2006
 Get the lugmug.
Get the lugmug. by Cheeba! May 25, 2009
 Get the lugmug.
Get the lugmug. 