head off at the pass
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Related to head off at the pass: cut some slack, along the lines, run an errand, same old same old, To Say the Least, worse for wear
head (someone or something) off at the pass
1. Literally, to prevent someone or something from reaching or passing a certain point, especially to escape. If we take this route, we should be able to head them off at the pass, sheriff! Janet's going to spill the beans about our plan to the teacher. I think she's going through the library, so if we're quick, we can head her off at the pass.
2. By extension, to preempt or forestall someone or something from doing something. The aim of this new treatment method is to identify the disease much earlier and then head it off the pass, rather than simply manage the symptoms it presents down the line.
head someone off at the pass
Fig. to intercept someone. (From Old West movies. Fixed order.) I need to talk to John before he gets into the boss's office. I'll head him off at the pass. The sheriff set out in a hurry to head Jed off at the pass.