* There is a typo: It could be a misspelling of another phrase.
* It's a slang term: It might be a slang phrase specific to a particular region or group, which I am not familiar with.
* It's a made-up phrase: It might be a nonsensical or fictional phrase.
To help me understand what you mean, please provide more context:
* What language are you referring to?
* Where did you hear this phrase?
* What was the situation in which you heard it?
With more information, I can help you decipher the meaning of "you la pelas."