black scope 

almost like a quickscope but except you don't see the crosshairs a little.

guy - hey dude I just black scope 3 guys!

black scope by pelonpelorico October 3, 2013

blackscope 

Like a Quickscope, a Blackscope refers to a player in a video game using a gun with a scope of some kind (Generally a Sniper). The player then aim in with the weapon and before he is fully in the scope shoots and kills an enemy.

Me: Dude I Blackscoped him!
Friend: Nice!

blackscope by COD TERMS May 21, 2018

backscope 

What a hot girl gives you after you pass by her on the street. When she passes you and then looks back at you for a second look, she is indicating that she's checking you out and maybe interested in meeting you. This also shows that you backscoped her too and thing she's hot.

Dude, that hot chick just totally gave me a backscope! She wants me.

backscope by yo Huge January 20, 2008

double backscope 

when you pass by a hot girl on the street and she looks back at you, then looks forward, then looks back at you again. (similar to the single 'backscope'). This means that she REALLY likes you.

Dude!!, that hot chick just game me a double backscope! i'm gonna go talk to her.

double backscope by yo Huge January 20, 2008