A LOLopwnt is when you force someone against their lies so that they make an "escape plan." Escape plan meaning they come up with some other lie to make all their other lies have a meaning.
Person1: oh hey, I made an OS.
Person2: COOL!!! Link??? :D:D.
Person1: I don't have a link for it :(.
Person2: UPLOAD!?!?! :D.
Person1: Oh, you won't believe what I've just done!
Person2: Uploaded it????
Person1: NOPE! I dunno what I did but now its not working?
Person2: You never made an OS did you??
Person1: Nope :/
That is a LOLopwnt
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.