So I heard you like cheese is a commonly-used catchphrase by many people. Many people who use it eventually lose their sanity. It is unknown how it makes people lose their sanity, but there are currently two main possibilities.
1. The word's order somehow makes the brain malfunction until many brain cells die, making the person mentally insane.
2. People who say it are already insane, but insane in a way that makes them say this strange sentence.

People who say it who aren't insane usually say it as a joke, to annoy someone, or they actually want to know.

The best pickup line a guy can ever use.

The phrases "I like cheese" is most precisely used to point out a comment that was relevant some time in the past but is not relevant in the current context. It evolved over time to also point out any non-sequitur comment.

This was started during a discussion between two students at Gustavus Adolphus College in St. Peter, MN. The one student (from Minnesota) called the other student (from Wisconsin) a "cheese head". The conversation continued on to other topics and the "cheese head" comment was long forgotten. Several minutes and topics later, the student from Minnesota (likely feeling the pangs of guilt for the forgotten insult) turned to the student from Wisconsin and said, "I'm sorry I called you a cheese head. I like cheese."

A slang term referring to the idea of an old, non cleansed area underneath a males penis. Usually, From-Unda-Cheese is used as a deragotory term to insult or make fun of a boy who doesn't wash his genitals, or even shower at all. The word can also be used to play a joke on a female or male because when said quick enough, it sounds like Fromundacheese... which could quickly be interpreted as a type of cheese.

A special cheese created in warm, moist environments. It has a cottage cheese like texture and a stronge smell like that similar to blue cheese.

verb - While having sex every 20 seconds you switch to a different hole. You do this repeatedly and in any hole you like.

A person that we all know very well (there's always one that you know) that doesn't have a clue about anything anyone has to say but will take your last statement and either A, regurgitate it back to you like they've formed their own opinion or B, take your statement and repeat it word for word.
The word is formed using the word "turd" instead of shit to refer to your thoughts and opinions as said above your "shit" and swatter to give the image of swiping/stealing. A basic version of this word would be shit swiper or something along those lines.

The word is also becoming a popular general insult in the town of Cheltenham where the originator of the word currently resides.