The word Buddha means "awakened one" or "enlightened one". The Buddha was an "ordinary" human like you and me before he became enlightened. Enlightenment is compared to waking up, because we suddenly experience a complete transformation of body and mind when we wake up. A Buddha is a person who has developed all positive qualities and eliminated all negative qualities. One could say that a Buddha represents the very peak of evolution, as he/she is omniscient or all-knowing. With his wisdom, a Buddha really understands the truth, whereas ordinary people live like in a dream, an illusion that prevents us from understanding reality properly.
This Tattoo represents the 'Ordinary" Human.