if all else fails

/ɪf ˈɔːl ˈɛls fˈeɪlz/

if all else fails

if all the other options prove fruitless

Examples

1. I mean if all else fails, just take over the world and then it won't matter because you're gonna be the king or the queen.

2. If all else fails she can ask her father for money.

3. If all else fails, a couple of mental tricks: visualize a force field around your self, like a bubble that ridiculousness just pings off of.

4. If all else fails: wait it out.