When someone you invite to a group or event, (usually a female) hijacks said group or event for their own purposes or desires.
"Wait, Faith doesn't want to go to Maude's Cafe? We decided on that weeks ago!"
"Yeah, so due to the Foster effect we're now going to the Westbrook Diner because that's what Faith wants."
"Yeah, so due to the Foster effect we're now going to the Westbrook Diner because that's what Faith wants."
by Hahayeah11 June 7, 2019
Get the Foster Effectmug. A gamer girl with a medium sized heart and will always be there if you have food. She's amazing at drawing and is funny and adventurous. She's also creative and somewhat annoying at times. If you ever meet her don't let her go or you'll regret it for the rest of your life.
by lolingisbae May 14, 2015
Get the jazlyn fostermug. Tall, extremely nice, cuddly individual. Enjoys Skor bars, alexisonfire, marijuana,and, uncharacteristically, golf. At first, appears as the "one-punch-will-knock-you-out" type of guy, but once spoken to it is revealed that he is a quiet, shy, softspoken gentleman. Gives wonderful hugs, while at the same time can beat up anyone who looks at you cockeyed. Makes a substantially excellent escort.
by Sarakore January 16, 2005
Get the Corey Fostermug. Republican: "Homosexuals shouldn't be allowed to get married, one man and one woman is the way!"
Oregon Foster: "You're wrong and so close minded! I hate you!"
Republican: "And you call me close minded..."
Oregon Foster: "You're wrong and so close minded! I hate you!"
Republican: "And you call me close minded..."
by JohnOfNone July 9, 2011
Get the Oregon Fostermug. A girl who dates a guy until they find their "forever home." Please note: Sometimes this isnt by choice.
girlfling
girlfling
Mike: Is Jim dating Sarah?
Sam: No, Sarah is the Foster Girlfriend so he isn't alone.
Mike: aww. poor Jim. I hope he finds is forever home soon.
Sam: No, Sarah is the Foster Girlfriend so he isn't alone.
Mike: aww. poor Jim. I hope he finds is forever home soon.
by Qreatin June 17, 2020
Get the Foster Girlfriendmug. by happygolucky November 10, 2006
Get the Sally Fostermug. 