Pornography with corn, Corn engaging in sexual acts, Nude Corn, etc. (See CILS)
"Ooohh, look at that corn porn! Ooohhh, yeeeahh, rub that butter on yourself! What are you gonna do with those corn holders? Yeah, you know what you're going to do with them, you dirty, dirty cob!"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.