“Vain Cow” (adjective, noun)
1. an extension upon the original “cow” insult, except add the “vain”
a) “vain” -To no avail, useless
2.1 useless fat bitch.
2.2 a phrase used to describe an ignorant person when they exert another opinion to the public.
“Oh my god, you aren’t ready for the real world you vain cow”