Definition 2: A derogatory term for anything from memes & old Youtube Poops to vintage stand-up comedy, & classic British sitcoms, used by both "woke" youth & out-of-touch seniors who still laugh at fart jokes & think Minions was a good movie. Basically, any intentionally offensive & mean spirited humor they can't understand or take too seriously, as well as reference-based humor they are out of the loop on.
Every day both the Old Media has a new hot take on "edgyhumor" while the SJWs have a new petition trying to ban it.