Ambigram tattoos are tattoos with words that reflected, have been flipped or inverted. A design may include one word or a phrase. The word may either be turned or inverted. With some layouts, once the inversion is done, the meaning of the word may shift and sometimes, it may compare the original meaning. For example, a word with a good meaning may be inverted and have a negative meaning. Ambigrams were independently devised by John Langdon in the 1970s. He featured them on covers of novels which led to them gaining popularity and ultimately they were embraced by people as tattoos.
These tattoos are mainly placed on the forearm in one way or the other consequently attaining the complete effect of the Ambigram design so that a person can flip it. Yet, many people still put the tat in other places like on the leg but its effect may not be so visible.