brown-nose
noun
• an extremely obsequious person.
• "a little brown-noser who wants to make sure I know he's working on Saturday"
brown-nose
verb
• curry favour with (someone) by acting very obsequiously.
• "academics were brown-nosing the senior faculty"
Origin:
early 20th century: from an association of subservience with having one’s nose in the anus of a more powerful person.
