1. Your mom when you are little and try to get into the cookie
jar or
touch her expensive vase from India.
2. A bitch/asshole that doesn't want you to
touch their goods.
Hey at least your mom lets you eat cookies whenever you want, mine is just a mean hand slapper!
Dude: Hey dude, that hottie at the end of the bar is stupid
fly.
Friend:
Man, I wouldn't touch that bitch, she's a hand slapper.