bantasgusting
adjective. Used to describe gossip or jokes that whilst possibly amusing might also be considered tasteless / inappropriate / a desperately poor attempt at humour - in fact just anything that isn't bantalicious.
"Did you hear what happened to Oli in Shelina's room?"
"I'm not sure I want to, if it's as bantasgusting as last time"
"I'm not sure I want to, if it's as bantasgusting as last time"