What does Banana Suprise mean?

Banana Suprise meaning in Urban Dictionary

The intimate work of blowing your load into the partner's nose, choosing it out, and making all of them eat it. This is done by pushing the dirty little finger into their mouth. Achieving this will provide all of them the "tangy" sensation of jizz and snot. Normally, this is done by power, because so many women usually do not appreciate a snot n' sperm smoothie.