|1.||Grow a Spine|
To gain confidence and/or courage.
Reference to the word "spineless" meaning unable to stand up for oneself or lacking in courage.
Person 1: Jane is so spineless. She lets the boss walk all over her.
Person 2: Yeah, Jane needs to grow a spine.
|2.||Grow a Spine|
To get stingy act cranky or grumpy act like a jerk
get sick of
John Bolton grew a spine at the UN Building.
I grew a spine after the Bush speech. grow a spine