This is a Swedish slang combining the words someone, banana and staying. It's origin is uncertain but it's used as a slangtoday for "where can we stay now that everything is closed"
Varkan vi nånanbanstana ikväll? (Where can we nånanbanstana tonight?)
the person with the kindest eyes, and the warmest hugs. she is the most awesome friend you could ever wish for and she's the type of a person who'll never betray you