Johnny-come-lately

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Johnny-come-lately

A newcomer or late arrival to a group or activity. The rest of the staff wasn't too fond of Greg, a Johnny-come-lately who received praise from the manager after just one week on the job. Hurry up, Johnny-come-lately, we've already started today's drills!

Johnny-come-lately

A newcomer, as in She may be a Johnny-come-lately on the board, but she's doing a fine job with publicity. [1830s]