I think that it might mean just one tattoo, well done, possibly unique or unusual, and in a thoughtful place for that person (ie enhancing their appearance, not detracting from it). The sort you sometimes see on the lead character in a film because they have been painstakingly added by a makeup artist to express the character’s inner turmoil/ brilliance/ feyness.
The opposite is common/stock image pictures (eg. roses, skulls, butterflies), gothic script, names/dates of loved ones, or jumbled masses of tattoos in different styles from different sessions, often in a random selection of places (back of neck AND sleeve AND wrist AND thigh etc).
I have several friends who had the former and as young beautiful 20-somethings looked amazing. Now we are 40s they look less so, not because of the oft-cited but meaningless problem of ageing with tattoos, but simply because they have tried to re-capture that amazingness by having more and more done and now look more jumbled and meaningless.
I should add that i am in the “no tattoos for me, ever” camp, but i have seen some amazing ones over the years on other people before they add too much.