when you stalk your victim for a while, then you creep up behind them gag them and drag them into bush and quickly rape them. Also A Yarnall Can be the act of shitting in someones left ear in an act of vicious revenge!
'Omg I Got A Yarnall yesterday'
by theantiyarnall September 04, 2009
A yarnall is the act of pretending you are gay so you can get girl best mates and when you go to the girlie sleepover you drug them and rape them all and the wont remember a thing in the morning
Oh yeah i pulled a yarnall on them girls last night!
by redblue06 September 11, 2009