When two people rub or press noses together. It is usually an innocent expression of affection, often shared between family.
The act is sometimes called an eskimo kiss
in Western countries because of an early stereotype about Arctic natives. It is similar in performance to the "kunik" of some Inuit
cultures and the Maori hongi
"Last night was awesome, bro. Third base! Next date, I'm in."
"Bullshit. I saw her give you a bunny kiss on the porch. You're in the friend zone