It means what's up
"Lo que está haciendo" means "what he/she/it is doing" in Spanish.
I love you baby that is all that I want.
"Eso es lo que pasa", for "that's what's happening". If you mean literally "up" as in "Upstairs" or "overhead", "Eso es lo que está arriba".
porque!? que lo causo!
"This person opened their Facebook account in order to write what they want, not what others want to write."
You could say "Eso es lo que pasa". If you literally mean "That is the direction of up", then you could say " Eso es arriba".
"In this life, only God knows what I feel for you."
Desconozco lo que está escrito en esta tarjeta / placa. Para reafirmar más la duda: Desconozco lo que esté escrito en esta tarjeta / placa.
lo que means:What?!
Look at what I have look at what I have.
Lo que pasó means "that which happened," or "what occurred." Lo que pasó es que hablábamos= What happened is (that) we were talking
Look! What I...