Descatáo' is a colloquial, shortened form of "desacatado," which literally means "disobedient" or "unruly." However, in the context of this song and Venezuelan slang, it takes on a much more vibrant meaning.
It describes being in a wild, uninhibited, and perhaps even a bit reckless mood, ready to have a good time and pursue romantic interests. The singer uses it to express a feeling of being "unleashed" or "on the prowl" at the party, ready for anything.
Get ready to dance with Rawayana's "Reyimiller"! This song is pure party energy, all about that feeling when you leave the house and suddenly everyone looks good. Our singer is feeling a little wild, saying, "No sé qué me pasa, Ando loquita" [I don't know what's wrong with me, I'm going crazy] and even, "Parece que me gusta Todas las que pasan" [It seems I like everyone who passes by]. He's surprised by his own mood, asking, "Yo no soy así, ¿Por qué estoy así? ¿Qué diablos me pasa?" [I'm not like this, Why am I like this? What the hell is wrong with me?].
He's definitely in a flirty mood, checking out different women at the party, from the one on the stairs who "huele rico, viva Carolina Herrera" [smells good, long live Carolina Herrera] to another who "tiene el ombliguito afuera" [has her belly button out]. He's feeling confident, almost like a predator, saying "Esta noche ando descatáo' Modo killer" [Tonight I'm unleashed, Killer mode]. The chorus compares his success with women to Reggie Miller, the famous basketball player known for his three-pointers, with the line "Esta noche la meto de a tres Como Reggie Miller" [Tonight I'm scoring three-pointers like Reggie Miller]. It's a fun, playful track about letting loose and enjoying the night!