not take (something) lightly(redirected from didn't take it lightly)
not take (something) lightly
To regard something with a great amount of seriousness or gravity. I hope you aren't taking these allegations lightly—they could mean a life in prison! I can promise you that I won't take this job interview lightly.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.