This short essay on tattoos contains information on
meaning of tattoo and tattoo definitions.

Different
people have different opinions about the meaning of the word, tattoo.
According to many, the word reminds of the sounds made by the tattooing
machine while making tattoos on the skin of those being tattooed. Then,
there is another school of thought which says that the name tattoo is
derived from the Polynesian word "ta" which means striking
something. It is interesting to note that in England the word tattoo was
common much before the voyage of Cook. In England the word tattoo was
used to describe the beating of military drums. As both the words have
their roots in Latin for marking the action of striking or beating, over
the years they might have got rolled into one.