Guinea-Pig
When we are the part of any experiment or testing we are called a guinea-pig.
Grab The Bulls By Its Horns
When we deal with a problem directly we grab the bull by its horns.
Fly in the ointment
When something spoils the whole enjoyment we say its the fly in the ointment.
Every Ass Likes To Hear Himself Bray
When some one likes his voice sound, this idiom is used.
Eat Like A Pig
This idiom is used for people who don’t have table manners or who eat excessively.
Fat Cat
This idiom is used for people who are wealthy and thus enjoy high status and influential position in the society.