Examples:

• I’ll wait for you to apologize until hell freezes over.
• She said she’d fight for justice until hell freezes over.
• You can ask him to change his mind, but he’ll resist until hell freezes over.
• I’ll keep trying to fix this old car until hell freezes over!
• He’ll keep arguing about this point until hell freezes over.
• You can keep asking me to lend you money, but my answer will be no until hell freezes over.
• They’ll keep searching for the treasure until hell freezes over.
• She’ll support her favorite team until hell freezes over, even if they never win.
• I’ll stay by your side until hell freezes over.
• You can hope for him to admit his mistake, but it won’t happen until hell freezes over.
• He’ll keep telling that same old joke until hell freezes over.
• I’ll keep trying to make this recipe perfect until hell freezes over.
• The debate over pineapple on pizza will continue until hell freezes over.
• You can wait for the bus to arrive on time, but it’ll take until hell freezes over.
• She promised to love him until hell freezes over.
• They’ll argue about politics until hell freezes over.
• I’ll keep trying to win the lottery until hell freezes over!
• He said he’d refuse to apologize until hell freezes over.
• You’ll have to wait until hell freezes over before she forgives you.
• The neighbors will argue about the fence height until hell freezes over.
• He can wait for my approval until hell freezes over - He won't marry my daughter.