pad: someone's home.
"Can I sleep at your pad tonight?"
party: celebrate.
"Let's party tonight!"
party animal: someone that loves parties.
"Dave has been known to sometimes be a party animal."
paws: hands.
"Get your paws off me!"
peanuts: very little money.
"I love my job, but the pay is peanuts."
pee: to urinate.
"I always have to pee after drinking beer."
pickled: drunk.
"He got pickled on vodka."
pig out: eat too much.
"Dave is famous for pigging out on chocolate ice cream."
piss: to urinate.