When you perfectly aim your penis to go straight into her anal cavity. Can take many years to master.
'Hey Tina, I had a great time with Derek, he's a real bum sniper'
An urban Scottish legend who preys on women at night. He’s usually seen bollock naked with a gas mask on. He catches his prey by blowing paralysis darts on his preys bum cheeks.
“Boss I can’t come into work today as my arse is in tatteres, restricting me from sitting down, this was the handiwork of the bum sniper.”