A reference from the Something Awful forums, j4g stands for 'joined for guild'. It refers to someone who has joined the Something Awful forums for access to their guilds in various games, and not for their community culture.
by Zahmekoses May 08, 2013
To deep dive into someone's internet history for the express purpose of finding material to support a narrative that the person is unacceptable and should be cancelled.
Person 1: I found deleted tweets from 10 years ago showing that Jimmy is totally a closet nazi. I don't think we should talk to him anymore.
Person 2: Dude helldumping is so 2017.
Person 2: Dude helldumping is so 2017.
by Zahmekoses October 06, 2020