be hell-bent on something/on doing something

be hell-bent on

To be very determined to do something, perhaps annoyingly so. She's hell-bent on coming here for Thanksgiving, so we better clean the guest room. I'm hell-bent on getting an A on this exam, so I've been studying all week.
See also: on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

be ˌhell-ˈbent on something/on doing something

be absolutely determined to do something stupid, dangerous, etc: Have you seen how fast he drives that car? I’d say he was hell-bent on killing himself.
See also: on, something
Farlex Partner Idioms Dictionary © Farlex 2017
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