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1.
this is a whore who sleeps around so much she is covered in a rash known as 'slagrash' however you can also call the whore herself a slagrash
1. Alright slagrash..hows it hanging?
2. Oh my god you dirty scrut you have SOME slagrash going on all over your body!
by chuff January 13, 2005
 
2.
when being shagged by various amounts of females (or males though not likely) the females not being shagged suck on a random body part of the man leaving a dark mark on the skin.
me: fucking hell mick! , thats the worst case of slag rash ive ever seen!, infact you ARE slag rash!

mick :pft your just jealous, go back to sleeping with one woman
by luke007 October 30, 2007
 
3.
slag-rash means love bite.
james - did you see kates slag-rash
emily - yea its a big 1!
by ....ninja.... May 14, 2007