1. A small creature that children own as pets, usually called the name of their favorite condiment. Ex: Peanut butter, Mustard, Ketchup.

2. The name for a man that a younger girl is strangely attracted too. The man is older in this case.
1. Fanny Jo: I got a pet guinea pig!
Susan Mae: What's his name?
Fanny Jo: Mayonnaise!

2. Aly: Guinea Pigs is so hot today!
Lexi: EWWWWWW!
Madison: EWWWWWW!
Ana: EWWWWWW!
Aly: What?!
by GuineaPigzLuvsAlyyyS March 09, 2010
Get a Guinea Pigs mug for your mama Sarah.
1. Someone or something that is used to test medicine or other products and procedures.

2. A small South American rodent that looks like a miniature capibara and is kept around the world as a pet. Also used as a food in its native range.
1. Fred is a guinea pig for a pharmeceudical company and gets paid for the testing.

2. One of the class animals in my biology class is a guinea pig.
by Steve December 14, 2004
Get the guinea pig neck gaiter and mug.
n. Offensive term for a particularly unattractive woman of Italian ancestry. Orig.: guinea is an offensive term for Italians, and pig describes an ugly female.
I banged that guinea pig Gina last night, but I had to bag her first.
by SkidMarkyMark April 24, 2006
Get a guinea pig mug for your papa Vivek.
A small, cute, furry rodent commonly sold as a pet. Eats just about any kind of vegetable, comes in many colors, screeches loudly when hungry. Possesses roughly the intelligence of a cow; sheds a lot.
Origin: Comes from South America. Named either after the country of Guiana or the fact that it originally cost one guinea in England. Raised for food in Peru; considered a pet everywhere else.
"WHEEK, WHEEK" screamed the guinea pig when she discovered her food bowl was empty.
by Anon November 13, 2004
Get a guinea pig mug for your brother-in-law Günter.
small rodent, about twice the size of a hamster, very hyper active and the size of a fully grown hamster when young, but will grow lazy and fat. they're are not suited for any excercise and will mostly die if forced to any excess movement. though they only eat vegetables, some fruit, pellets, soft hay, grass and specialy developped food for rodents, they'll attempt to eat anything, as long as it's close enough to they're mouth. they sometimes may act blind for food, hoping to get more. many find them adorable and cute, and keep them as pet, as they're easier to care for then most other pets. they produce very high-pitched and loud noises when hungry or hearing a noise they relate to food or someone who bring them food, impossible for any creature not from the family of caviae, including humans. they're related to the capibara, world's biggest rodent, wich is sometimes also kept as a pet.

If you want to take a guinea pig as pet, remember that they're group animals and you're forced to buy multiple in order to avoid a depression. also, you should provide a compost bin, as guinea pigs produce much of that...
a fully plastic cage advised, else they'll throw much food away, hoping they'll get more and better food.
i love my guinea pig, he's fluffy and produces lots of manure for my plants in exchange for wortheless vegetables
by redharvest July 31, 2011
Get a guinea pig mug for your dad Manley.
Guinea pigs are a furry ball, or a potato. They have little squeakers that sound like a pig being stabbed, and can go off when they hear you, the fridge opening, a bag crinkle, or if they see food.

Whenever they eat, they make little potato baby’s. Usually after eating you’ll find a mound of these. Sometimes they’ll go back for seconds sometimes and will eat the potato baby’s.
A furry potato can also be a skinny piggy which is a peeled potato.
by Peznuttychu September 20, 2019
Get the Guinea Pig neck gaiter and mug.
A sexual act where the female fellates the male with the male's penis deep in her throat. The male then proceeds to punch the female in the stomach so that the female gags and makes squeaky noises simular to that of a guinea pig.
Anne walked weird all day, I'm sure she and Bill did the guinea pig last night and it still hurts.
by BigNerd9000 June 28, 2017
Get a The guinea pig mug for your cousin Rihanna.