If the selfie of your but is called a belfie, shouldn't a selfie of your face be called a felfie and as always, thanks for watching - Michael from vsauce
To be so utterly and totally wasted that it is impossible to converse properly using a keyboard or mobile phone.
Can also carry over into an inability to verbalise in a coherent way.
"Dave, what the hell were you posting last night - it didn't make any sense?"
"I was posting? Damn, I was so feffed."