1 definition by Ms. Harley Quin

Sierra

Liar, backstabbing, fake, manipulative master of BS that will throw there closet friend even there own family under the bus to get what they want. This person only has loyalty to themselves they are pretentious and self absorbed and lastly materialistic and egotistical.

I knew she was a Sierra when she took my boyfriend away from me because it's always about her.

by Ms. Harley Quin November 7, 2020