Banana Suprise
The sexual act of blowing your load into your partner's nose, picking it out, and making them eat it. This is usually done by shoving the dirty finger into their mouth. Doing this will give them the "tangy" sensation of jizz and snot. This is usually done by force, as most girls do not appreciate a snot n' sperm smoothie.
While your sister was jacking my wanker, I gave her a banana suprise.