Throw in the towel - give up on some endeavour; to quit or abandon something; to admit defeat or failure
💬 Poddać się, zrezygnować
Examples:
I've been working on this book for over a year and I'm getting nowhere with it. I think I'm ready to throw in the towel.
Having tried their hand in the mobile market for a few years, the company is throwing in the towel after finding very little success.