To get someone together with you, usually with a catch like Marijuana (or *gas*), and then later dropping bombshells of defamation, (or shedding *
light* on judgmental outings) as to incite pernicious activity amongst the
relationship, fights, or general emotional
abuse.
John: "Yo dude,
Kay and Jay had a get-to-gether and
Kay heard something she didn't like about Jay and it got real messy."
Bill: "What did she hear from Jay?"
John: "He mentioned he bought a fleshlight, so she got back at him on snapchat by GASLIGHTING him.
Bill: "Daaamn."
John; "It gets worse, she then tried to cancel him on twitter for talking about their pocket
pussy, and now they are going to get into a fist fight."