Examples:

• We could argue about this until the cows come home, but I'm sticking to my opinion.
• You can keep asking me to clean your room until the cows come home, but I'm not doing it.
• He'll keep procrastinating until the cows come home if we don't push him to finish.
• She'll dance until the cows come home at any party with good music.
• He'll talk your ear off until the cows come home if you let him.
• You can search for that book until the cows come home, but you won't find it.
• She'll keep trying to fix that machine until the cows come home, but it's beyond repair.
• He'll keep insisting on his point until the cows come home, even if he's wrong.
• You can wait for her response until the cows come home, but she won't change her mind.
• He'll keep trying to solve that puzzle until the cows come home, but he won't succeed.
• She'll keep practicing until the cows come home, until she masters the skill.
• You can keep making excuses until the cows come home, but you won't get away with it.
• He'll keep reading until the cows come home, until he finishes the book.
• She'll keep searching until the cows come home, until she finds the right answer.
• You can keep complaining until the cows come home, but it won't change the situation.
• He'll keep trying until the cows come home, until he achieves his goal.
• She'll keep working until the cows come home, until she completes the project.
• You can keep guessing until the cows come home, but you won't figure it out.
• He'll keep arguing until the cows come home, even if it's a pointless discussion.
• She'll keep laughing until the cows come home, until she can't breathe anymore.