left handed screwdriver 

when your fellow tradies are out on smoko and they ask the new apprentice to give them a left handed screwdriver, it's both a prank and an intelligence test to check if he knows his tools.
It's a more generalised version of the 'muffler bearings' prank that car mechanics often ask from new trainees.

Tradie: "Oi Jimbo, can you go down to bunnings to grab me a left handed screwdriver?"
Apprentice: "Sure, but have you found the muffler bearings yet?"

left handed screwdriver by ahnonnymoose December 24, 2022

left handed screwdriver 

When a man who is right hand dominate masturbates with his right hand to ejaculate into his left hand. He then uses the ejaculate as lubrication to masturbate a second time with his left hand.

I downloaded this awesome donkey porn last night and I had to use a left handed screwdriver to finish watching it.

left handed screwdriver by Lefty McTwyst January 26, 2011