A characteristic tightness and or plumpness which a woman's (or
man's) bum displays upon observation. This particular type of bum
will instantly imprint an image of a tight, lubricated and
hot bum in the viewers mind upon observation.
Jody: "
Keith!, Keith are you listening!?"
Keith: "Sorry, I couldn't help thinking about your
bum, it's a smiggle
bum!"
*Jody slaps keith and walks away