the dirty wig

When someone uses your wig to wipe someone's ass.

Man,I ran out of toilet paper and had to do the dirty wig,again.

Dirty wig shopper

Someone who is or likes transsexuals secretly and it is implied has a small penis who never agrees to show it

„Rowan is a dirty wig shopper, he won’t show me his dick and I’m pretty sure he likes trannies“