This is a friend or someone whose close to you . So back stabbing snake in the grass .is someone whose allways slithering around and geting there involved with any thing that they're or get any info .then they hold on to it when your guard is down .and that's when they slither up your back and stab and stab you in the back and just fuck u over till there is nothing left ...then they slither back to where on to there next victims ... most wrotten fucking things backstabber snakes inthe grass ...

Used to describe (generally female) imagery that's suggestive, but in a PG-13 sense rather than an R or above sense.