A lie within a lie (and so on). A person who is experiencing Lieception has made up so many lies that they no longer know what really happened and start to believe their own lies. A reference to the popular American film, "Inception".
Dude 1: Dude I'm freaking out! I lied to the cops and now they've got me in that lie!
Dude 2: Its okay bro, just chill out! You're just experiencing Lieception.
Dude 1: What's that?
Dude 2: Its when you lie so much that you believe your own lies and have to formulate other layers of lies to keep the original lie from being known. You forget the truth in the process.