Facial Spelunking - A face attack where you stick your finger in someone's nose

A face attack where you stick your finger in someone's nose and pull out the nastiest booger you can find.

My brother did facial spelunking on me during math class. The teacher was mad.

At the sleepover, we did facial spelunking on each other. It was a mess.

My friend did facial spelunking on his mom. She screamed like a banshee.