The unflushed remnants left in the toilet bowl after a particularly explosive poo. The polar opposite of a "four man bob."
Otherwise known as "scorch marks."
Muriel, fetch me the bleach. Some little bleeder has left tiger stripes in the khazi!
When a man removes a used, bloody Rat Whistle from a menstrual girls fanny by the string using his teeth, then energetically shakes his head from side to side producing red, bloody Tiger Stripes on the face.
'Have you heard the good news? Dave's only gone and got his fucking tiger stripes!'
'Fuck off, I won't believe it!'
'No, it's true, here look at this polaroid, he looks like Tony the fucking Tiger'
'Thats Greaaat! I'll buy that fuckweed a pint next time I see him'