>>6801255In general, the Terrorcons are the Beavis and Buttheads of the Decepticons. They normally work for Scorponok and fight the Technobots though IDW made them Megatron loyalists, complete with a story where they nearly murder Scorponok for Megatron. IDW also made them Sixshot fanboys, in terms of being his biggest fans in order to humanize Sixshot (as he opts to protect them rather than let any Cybertronian bigots kill them).
Individually, they do have some personalities:
Blot (the most recognizable one) is a self-hating 'Con who leaks oil and grease due to his robot body being poory constructed. As such, no one but the other Terrorcons like him and there are memes out there of Blot being grabbed and washed by his fellow Terrorcons.
Cutthroat is a generic psychopathic killing machine
Rippersnapper is a generic psychotic killing machine too but driven by an inferiority complex
Sinnertwin is a straight up sadist but has the gimmick of being TERRIFIED of small creatures like humans or animals.
Hun-Grr is basically Onslaught (super smart strategist) who's basically hampered by the fact that he's a huge glutton who can't stop eating to save his life.
Also, it varies from canon to canon whether or not each of Hun-Grr and Sinnertwins' heads share the same mind or both have their own unique personality.
Abominus is considered one of the more competent gesalts. It may be dumb as fuck, but can be pointed into a direction and destroy everything in it's path without the members internally turning on each other ala Menasor.