A male hanging out with firends out at a bar, hits on every girl he can before the night is up. Sooner then later the male after countless attempts pulls a rench out and bops the next girl he sees on the head to take them back to his place.
Like a cave man bringing back his dinner using a club, the modern day man uses a wrench. AKA a "Brunne" the weapon of choice.
Wow would you look at that! That guy is going to pulling a Brunne with that girl.