cut your teeth

cut (one's) teeth

To gain experience with something, especially at a young age (when one's teeth would be coming in). Oh, I cut my teeth on those kinds of equations! Give me a challenging problem for a change! Jen may be young, but she cut her teeth at a prestigious journal, so her perspective and expertise will be invaluable to us.
See also: cut, teeth
Farlex Dictionary of Idioms.

cut your teeth

COMMON If you cut your teeth doing something, you get your first experience of it and learn how to do it. He plans to cut his teeth on demanding theatre parts before making the break for TV and film. He cut his teeth in the sixties as director of Edinburgh's Traverse Theatre. Note: This expression can be varied by adding an adjective before teeth to show what sort of experience was gained. He had cut his editorial teeth on the London Evening Standard. Note: When a child cuts a tooth, the tooth begins to appear through the gum.
See also: cut, teeth
Collins COBUILD Idioms Dictionary, 3rd ed.

cut your teeth

acquire initial practice or experience of a particular sphere of activity or with a particular organization.
The form cut your eye teeth is also found. The image is that of the emergence of a baby's teeth from its gums.
See also: cut, teeth
Farlex Partner Idioms Dictionary
See also:
  • cut (one's) teeth
  • cut (one's) teeth on (something)
  • cut one's teeth on
  • cut teeth
  • cut teeth on
  • eyetooth
  • cut (one's) eyeteeth
  • cut one's eyeteeth
  • be long in the tooth
  • cut eyeteeth on
References in periodicals archive
"Cut your teeth, learn your craft, get involved in community radio, listen to yourself and critique yourself.
I think he's wise to go back to Scotland, because it's a great place to cut your teeth.
"It's totally overwhelming, because when you see all these people up there that you cut your teeth on, and listened to and heard, to think that you've got a room next to Elvis Presley now, is like, wow!" Aerosmith's lead singer Steven Tyler said as he held his trophy backstage.