The Reverse Scissor Job (or RSJ) is the sexual act in where 2 bisexual girls scissor themselves, and a guy puts his penis in between and starts rubbing/moving it back and forth, causing not just the guy's arousal, but the other girls arousal too. Is similar to the double tit fuck.
An act in which a man and woman ram their crotches together such that their legs resemble two pairs of open, interlocking scissors. Once in position, the man, the woman or both proceed to let fly with a foul, runny shit.
I think Tim freaked that girl out when he told her he wanted to do a stinkyscissor.
Traditionally done when two men (typically homosexuals but not always) are given a blow job from the same person. In order for both of their genitalia to line up they get into a scissor position with balls and dicks touching. This way the sucker can get both dicks in his (or her)mouth at the same time.
Hey Jeevan that guy over there offered you and Jonny a double scissor suck because he thinks you’re both hot as hell.