collar up
动词- To apply a harness to a horse.
- To put a collar on a dog (a band or chain around an animal's neck).
- To build up a lip or collar around a hole.
- To raise the collar on a shirt or jacket (the part of an upper garment (shirt, jacket, etc.) that fits around the neck and throat).
- To engage in a collar trade (taking equal but opposite positions in a put and a call with different strike prices).
- To arrest (someone); to arrest one or more people.
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