talking straight out of your ass so bad that you are at the point where you're just talking for fun. Can also lead to a stream of obviously lies and making things up as you go. This is is not to be confused with sarcasm. When yaking you remain dead serious.
Similar to "yoink". Unlike "yoink", which denotes the sound of taking something off someone's person, "yoing" denotes the sound of simply taking something that has no owner.