As a noun:
* It can refer to a person from the United States, often used in a casual or informal way.
* Example: "That yank is driving too fast."
* It can also refer to a sharp pull or tug.
* Example: "He gave the rope a yank."
As a verb:
* It means to pull something sharply.
* Example: "Yank the door open."
So, the answer to your question depends on how the word is used in a specific context.