A person who is related to the griffin family or is a fatass, or is one with the griffin.
"I'm sorry sir, but it appears to seem like you are Peter Griffining."
"Have you been Peter Griffining recently?"
"petah."
That one guy from aquantance person
Peter Whirly Bird Griffin commin' at ya in a sizzling hot Sunday afternoon
A person or someone who buys thousands of lottery tickets and becomes rich overnight and uses the money to start their own business or to avoid the real world because its a joke and a modern day form of slavery as they make money for someone else not just themselves and not everyone knows that because they wern't gifted by god or smart enough to realize it.
Random person: Hey how do you like working here I wanna work here.
Employee: Its not fun its like hell and a modern day form of slavery because its a waste of my free time and happiness so I'm using them as a tool to use the Peter Griffin Tactic to start my own business because the way the world works is dumb and a joke.
a good guy that is really funny because family guy is good show!!1
me: i love peter griffin
another guy: same
Peter griffin is a fictional character, who's usually used to describe people with a big chin.
There is many peter griffin look-alikes such as Robert Franzese and Jamie Chalk.
"Why is your chin so big, are you irl peter griffin?"
Dude shut the fuck up thats not funny.
Dude come on fuck off Peter Griffin