The word “despacio” in Spanish means “slowly.” A slightly cuter or more playful way of saying the word is “despacito,” since it contains the diminutive ending “-ito.”
The song “Despacito” is basically about making love to someone slowly. For example, the line “Quiero desnudarte a besos despacito means “I want to strip you off with kisses slowly.”
Quite the sensual song, huh?