jack-mack 

verb. The act of beating someone with a weapon consisting of a canned food item inside of a sock. Believed to be derived from canned jack mackeral, the least expensive and abundantly available food in certain prison inmate stores.

(inmate 1) that dude keeps threatening me with a knife made out of a toothbrush.
(inmate 2) let's jack-mack him tonight after lights out.

jack-mack by Bob Wible March 13, 2008

Jack Macklin 

a pure poof cake

"Jack Macklin is a Pure poof cake min"

Jack Macklin by imabittystoned October 1, 2018

jackmack 

an absolute legend, swag king, and also legend. He is the peak of masculinity, but he doesnt have the best luck in the lady department

this guy is handsome but the girls aint felling him he’s really jackmacking it

jackmack by Cooldaddy83747 January 2, 2025