A phrase made popular on xbox-live by "Im Too Crazy". The phrase is used to either make everyone that is listening to you aware that you are irritated by what ever is going on. To be used properly, you must stress your voice and hold your nose. It can also become very annoying after awhile when everyone you know is saying it all the time.
"Im not gonna lie, this song sucks" or "Chris, Im not gonna lie, your pissing me off"