Pichea is a popular slang word in Puerto Rico meaning 'to ignore' or 'to ditch'. It's a perfect example of Spanglish, as it originates from the English verb 'to pitch' in baseball, like a batter ignoring a bad pitch.
In the song, the line 'pichea el hotel' translates to 'ditch the hotel'. This phrase captures the spontaneous and rebellious vibe of the moment, making it a key piece of slang for understanding the culture of modern reggaeton.
"Diles" is a massive collaboration that basically tells one story from five different points of view. The main idea is a secret, purely physical relationship. The singers are telling a woman to go ahead and tell everyone—maybe her friends, maybe her actual boyfriend—how much better they are in bed. The chorus is the whole message in a nutshell: "Diles / Que yo me sé tus poses favoritas / Que te hablo malo y que eso te excita" (Tell them / That I know your favorite positions / That I talk dirty to you and that excites you). It's a confident, almost arrogant, declaration of sexual skill.
Each artist adds their own flavor to the story. Farruko makes fun of the woman's boyfriend, saying "Tu novio viste de Old Navy / Yo sí tengo flow, él no tiene flow" (Your boyfriend wears Old Navy / I have flow, he doesn't have flow). Ozuna gets specific about a steamy encounter in a car where the "cristales del carro se empañan" (the car windows fog up). The whole song is a very direct and explicit celebration of a secret affair, with each artist trying to one-up the others in describing just how good they are.