Allah is one of the many delusions caused by religion, a disease often leading infected individuals to blow themselves up. It is derived from the Arabic words Al = The, and Lah = Lie, which in turn gives us the word The Lie.
Even the most fervant Allah-ite is not able to offer a description of what his gad looks like. According to Islamican tradition, it is blasphemous to attempt to portray Allah in any visual way; instead, followers may only print his name in fancy Arab squiggles. How convenient... is this because Allah is too holy to be painted, as they claim, or is it because they don't know what Allah looks likes because he doesn't exist? We will let the reader decide.
One of the main reasons we know that Allah is a false god is because of the attributes given to him by his followers. For instance, it is said that this Allah fellow is "omnipotent", "omniscient", "omnipresent", and "Mexican", whatever that means. Only heartless heathens would use such blasphemeous terms. We know that the one true God is none of these things; according to the Holy Bible, God is actually "all-powerful, all-knowing, and ever-present". Forget all those sinful, untruthful "omni" words - this is the only real truth about God!
Another thing that these devious Muslimites say is that Allah lives in a realm called "Jannah". Only a corrupted Indonesian fornicator would fall for such evil lies. It is obvious that the real God lives in Heaven, a.k.a. paradise, because that is what the Bible says. Why would God live in some weird place called "Jannah"? How could a place like that be heavenly, or paradisical? It is easy to see that these lies about Allah are just that: lies.
Islamism supplements its Allah-worship with a cult of personality based on the character of Mohammed. Mohammed is supposedly the founder of the Islamistic religion. He was the first leader of the Islamite church and did the most to spread the lies of Islamism around the world. Because of this, Islamists elevate Mohammed to a godlike status that is completely unwarranted even by their own religious writings. All Islamistical leaders strive to act like Mohammed, he is prayed to and idolized, and some even swear to seeing his image in bowls of soup or in the clouds. Such childishly silly acts only throw the infantile nature of Islamistism into sharp relief. How could any self-respecting monotheist claim to see their god in a burnt tortilla? Certainly not a Christian, that's for sure.
The surest way to tell that Allah is imaginary is that his followers say that he has not "begotten". In other words he doesn't have children. This is preposterous. How could Allah be the real God if Jesus is not his son? How could he deserve worship if he did not sacrifice his son for our sins? The Bible clearly states that Jesus is the Son of God. Ergo, if this Allah character doesn't have children, then he isn't God. It's pure logic, really.
But in fact, that is only one of countless logical arguments proving that Allah does not exist. For example, let's suppose for the sake of argument (as silly as this might sound) that Allah is indeed omniscient, omnipotent and perfectly good. If there was any suffering or evil in the world, Allah would know about it (with his omniscience), be able to stop it (with his omnipotence) and want to stop it (what perfectly good being would let evil happen?). Therefore there should be no evil or suffering in the world - but there is, proving that Allah does not exist! Any true and holy God would not be succeptible to such easy logical disproof.