To understand its meaning, you'd need more context.
For example, is it being used in a:
* Musical context: Perhaps it refers to playing every note in a piece with a trill, a rapid alternation between two notes.
* Online slang: It could be a playful or ironic way to say "do everything" or "exaggerate everything."
* Specific game/software: Some games might use "trill" as a command or action, and "trill everything" could refer to a specific instruction.
Can you provide more context about where you encountered this phrase?
For instance, tell me:
* Where did you hear or see this phrase? (e.g., a song, a video game, an online forum)
* What was the situation? (e.g., someone was giving instructions, someone was joking)
With more information, I can help you figure out what "trill everything" means in that specific context.