A phrase which roots are the hebrew language. carries a very rough
mephistophelean/ironic fragrance.
It uses as a reply to a dumb/
imaginary wish.
One may add it his own 'punch' bolting his uniqueness &
individuality and also making the impact much bigger.
Example 1:
David: "Oh simon, wouldnt it be great if we were able to fly?"
Simon: "Yeah...If
my grandma had wheels..."
examles of a common
expansion:
"If my grandma had wheels, she was a
motorcycle".