The Alot looks like a cross between a bear, yak and a pug dog, and was created by the author of Hyperbole and a Half. Original description (with pictures) can be found there.
"I care about this Alot." (I care about this a lot.)
It cannot be found in the dictionary and drives many people crazy as it is incorrect.
Allot means to share/ divide space or things- this is where allotment came from, an allotted space of land.
lot- meaning one of a set of objects/ a way of deciding (similar to vote) or the decision or choice made by such a method.
a lot- Very many, a large number; also, very much.
Now, the word 'alot' doesn't appear in any correct dictionary, so it is not a word. It is a popular misspelling- done by those who seem to have missed basic spelling classes in Primary school.
Person with correct spelling- a lot, you LOVE him a lot.