mack the knife 

1. A London folk-hero of the 1700's, a robin hood type of fellow.
2. The newspaper name of a Detroit mob enforcer.
3. A swinging song by Bobby Darin
4. To put on a condom (from mackintosh). Also called mack the badger.

1. "Look, up in the sky! Its Mack the Knife!"-lowly peasant
2. "MACK THE KNIFE STRIKES AGAIN"- lowly tabloid
3. "Look out, oh macky's baack!"-lowly karaoke fan
3. "Are going to mack that knife, or am I going to have to do it for you"-lady about to go lowly

mack the knife by C-Dawg (no, really) April 22, 2006

Mack the knife 

To sneakily surprise your significant other while they are sleeping by suddenly stabbing your penis into their anus at night. Quick, Efficient, and sneaky, just like the real Mack The Knife

“I heard Andrew he pulled a Mack the knife on his girlfriend Jenny Diver to surprise her”

Mack the knife by Dr retard September 4, 2022