Lolcats

Lolcats are an internet meme that consist of pictures of Cats that normally are small and adorable, and cannot spell at all. One of the most popular lolcats is the I can haz cheezburgerz. Normally they add Z's to almost every word that has an S within it.

Name
Lolcats are names so because they are cats that make people laugh. They have the abbriviation Lol in them which is the reason they are named as such.