A phrase drawing inspiration from phrases -
1. Make one's bones
2. Grow into something
It means that a person is maturing into a particular skill or talent, something that may have a learning curve.
John Joan Jones will grow bones around cleaning duties. They say that he could have a bright future.
When you have genital warts growing in or around your asshole
Hey I heard Alec starting growing potatoes in the backyard after he got caught soliciting male prostitutes
The best part of growing up in Chicago.
Interviewer: Best part of growing up in Chicago?
Johnny (uhhhh face): uhhhhh... Growing up in Chicago 😬
a fruit punch liquid that is made in good 2 grow
When one's arm hair stands on end when they are cold giving the appearance of wearing a wool sweater.
Tommy: Dude are you cold or something?
Jim: Yeah man! Look, I'm totally growing a sweater.