1. To move forward very slowly and cautiously. If used transitively, a noun or pronoun can be used between "nose" and "in." I think you'll have enough room to get into the parking spot—just nose the car in a little bit at a time to be sure. He stood watching the fishing boats nose in as they came back to shore from their expeditions.
2. To pry or snoop around; to try to find information about something, especially private, secret, or sensitive matters. Make sure no word of this gets out. The last thing we need is the feds nosing in our affairs. My mom always tries to nose in whenever she suspects I'm dating someone new.
nose in (to something)
[for a boat or other vehicle] to move or be moved into something or some place carefully, nose first. The captain nosed into the channel, and our journey had begun. He nosed in and we sailed on.
Also, nose into.
1. Advance cautiously, front end first, as in We nosed the boat into her berth, or The car nosed in very slowly. [Mid-1900s]
2. Pry, snoop, as in He was nosing into our finances again. [First half of 1900s] Also see nose about; poke one's nose into.