An untrustworthy V.I.P. who may commonly deceive people, be compulsive liars, etc.
Combines the phrase 'Very Important Person' with 'Viper', the species of snake.
“I don't think they should have lied about their contract.”
"Agreed. They're a bit of a VIPer.”
Person 1: damn that viper head is fire af
person 2: still hardtusck plat tho