Sibling Zone

Pretty much the Brother Zone and Sister Zone mashed into one convienient term.

Jen told me she liked me like a brother. How the fuck do you get out of the Sibling Zone?

by Mofos in the Zone November 05, 2009

Sibling-zoned

When a member of the opposite sex (or same sex) declares you to be "brother/sister", thereby ruining all potential chances of sex.

Guy: Would you like to go out with me?
Girl: I'm sorry, but you're like a brother to me.

Sibling-zoned!

by LanaDangerZone April 01, 2012