hit your straps
hit (one's) straps
1. To start traveling at a consistent pace; to hit one's stride. We started out slow but then hit our straps as we continued through the park.
2. To become proficient in a particular area. Once you hit your straps at your new job, I'm sure your boss will be very impressed with you.
hit your strapsbegin to perform as well as you can; hit your stride.
The expression, which is used mainly in sporting contexts, originated in Australian English. It may have originated in the idea of looking for the straps of one's swag pack, interpreted metaphorically as seeking a new job.
1992 Daily Telegraph A number of our players have not hit their straps for whatever reason, but they know that if they don't do it shortly, they'll no longer be part of the team.