To stick ones finger up an arse, either your own or someone elses, and to then smear this finger and its contents under the nose of the victim. This gives them a moustache of shit - or a ratty tash.
Victims can be lulled into the act by asking them "What does this smell like to you?"
Victims can be lulled into the act by asking them "What does this smell like to you?"
When Sweetman was younger he gave his entire family a ratty tash on Christmas Day - the mucky bugger - using the old "What does this smell like to you?"
by SwiftSix June 20, 2005