Your Mother. Used by Scousers and northerners on Bully Victims, or as a quick comeback to anything or everything.
Origin:
North west of
England in the year '22' when a Scouser known as Smigga, turned to Jesus on his UK tour and asked where he was the night earlier. Jesus said, ''Manchester... it was
hell mint'' and being the polite
guy he was, he turned and asked back, "you?"
Of course he knew he was going to
say having intercourse with your mother, so he stopped the little bastard
mid-sentence and crippled his nipple with his LASER EYES
the reply:
"shaggin ya maaaAAAAHHH!"
it caught on.
True story.