(Verb)
to gently and/or cutely pat an animal you own
(Noun)
an animal you own
I like to pet my cat.
A pet that left you. Ex: If you had a dog, and it ran away.
"My dog ran away, now he's my ex-pet!"
The team pet is a boy on a sports team, usually football, who is the smallest and least skilled player. Usually isn't genuinely respected, yet is rarely directly mocked, and never beat up. Teammates are usually protective of the team pet, often going easy on them during practice/drills.
"Rory does football? How hasn't he gotten beat up?"
"Oh, he's the team pet"