LOLcats definition: An image combining a photograph, most frequently a cat, with a humorous and idiosyncratic caption in (often) broken English—a dialect which is known as "lolspeak", or "Kitteh". The name "lolcat" is a compound word of "LOL" and "cat". Lolcats are created for photo sharing imageboards and other internet forums. Lolcats are similar to other anthropomorphic animal-based image macros such as the O RLY? owl.
I know, I know. Now it's all perferctly clear, right? Here's more history:
There are several well-known lolcat images and single-word captions that have spawned many variations and imitations, including "Ceiling Cat" and "Basement Cat" which have become the lolcat equivalents of God and Satan, respectively. Others include "I can has Cheezburger," "monorail cat," "I [verb]ed you a [noun], but I eated it", "hover cat", "Oh Hai I upgraded your RAM," "WANT", "DO NOT WANT!," "Fail", "Nom Nom Nom" (used for eating), "Halp!", "Invisible [object]", "Proceed," and "Pew pew pew" for shooting. A related phenomenon uses photos of an elephant seal("lolrus") on the search for a blue bucket ("bukkit").
Such astounding clarity. And now for some examples:
Don't ask me why......