Just like the stress of toning your sellulite- you're nicely piece of Sellotape curls over, inevitabley leading to a tension fuled sellufight leaving it a crumpled sticky mess.
Janice- 'Why's rick red in the face this morning?'
Jane- 'Oh he was real stressed about the delicate wrapping of Karen's present- think he got into a sellufight!'
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.