A person with a very significant chip on their shoulder who is excessively patronising/nasty to someone, basically because they wish they were smart enough/funny/good looking enough to be them but know that they're not.
Jesus that consultant was a salty cunt this morning. It's not my fault he didn't get into Cambridge and I did!
1/
insecure cunt: jessica is girl who is so smart and pretty... and HER TITS ARE BIGGER THAN BELLAS!
2/
insecure cunt: Riley is girl who is more intellectual and brave than any other. she isn't afraid to be herself even if her eyebrows look like a 12 yo's rat mustache as her stupid mom said. FUCK YOU MOM.