Just as a brown noser kisses ass for favors, a pink noser kisses clit for favors.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

When a person is such a kiss ass they go beyond brown nosing and move their nose to the vagina instead.

A person that kisses up to a woman, especially on the internet, exceedingly. It's one thing to treat them well, it's another thing to be outrageous about it. Pinknoser is the female equivalent of a brown nosing.