Tatuajes means 'tattoos'. While the literal meaning is straightforward, its use in the song is deeply metaphorical and emotionally charged.
Joan Sebastian sings about "Tatuajes de tus besos" (Tattoos of your kisses) and "Tatuados sobre el tiempo" (Tattooed over time). He's not talking about actual ink on skin, but rather the indelible marks left by a past love. These 'tattoos' are the memories and feelings that are permanently etched onto his body and soul, enduring through time despite the separation. It's a powerful image that conveys lasting impact and an unforgettable connection.
Joan Sebastian's "Tatuajes" is about walking away from someone out of respect for their pride, while admitting their memory is impossible to erase.
The singer says he is leaving because his lover's pride demands it, giving up someone he still needs. He is not sure he will ever really forget them.
The chorus turns memory into an image: the other person's kisses are like tattoos, marks that stay on his skin and outlast the relationship itself. Even walking away, he says he carries them inside him.
In the bridge he tries to convince himself he has moved on with someone else and forgotten completely, but the hesitant way he says it makes clear he has not.