When a guy had been drinking and cannot get it up, but tries, thinking "if I can just get it in it will get hard" his penis creating the feeling of a gummy worm on the womans vagina and/or leg.
"Ricky was so drunk last night that he just kept gummy worming me and we never went all the way "
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.