Quagmire is most known for his love of sex. He is constantly making sexual jokes and innuendos, often accompanied by his signature catchphrase, “Giggity giggity goo!”
Quagmire has several bizarre hobbies, with the most iconic one being his love for shoving rusty nails into his penis, as well as other assorted objects.
Quagmire's main occupation is being a pilot. He occasionally is depicted as flying planes into the Twin Towers.
Quagmire is known for being a bachelor who doesn't want to settle down and marry someone. He is usually depicted as being single on the stream.
Quagmire's friends include Joe, Cleveland, and Peter. They often hang out together at the Clam and have strange discussions involving topics suggested by the viewers.
Quagmire can sometimes be seen having sex with various female characters, most commonly Lois.
Quagmire has mentioned that he does have an un-named ex-wife. [clip]
He once mentioned an ex-wife of his was very flat. It's not certain if it's the same, or a different one. [clip]
Before he was added as a proper character, he used to be a donation-only character. He appeared on the living room couch, performing a dancing animation.