The correct spelling of the phrase is "you lose" /juː luz/ not "you loose." The first word "you" is pronounced as /juː/ which rhymes with the word "few." The second word, "lose," is pronounced as /luz/ which rhymes with the word "snooze." It means to fail, not win or retain something. Incorrect spelling or grammar can impact the clarity and credibility of the message, so it's important to proofread before publishing.
The phrase you loose is actually a misspelling of you lose. The word lose comes from Middle English losen which evolved from Old English losian. It ultimately derives from the Proto-Germanic lausijanan, meaning to destroy, to perish.