Kracker Jack

Someone who is stupid.

She is a freakin Kracker Jack when it comes to Math,

by KJL July 21, 2003

Lower Decker Knacker Jacker

Term to define the males undergarments that would typically lift the testicles or gonads. The more effective type are defined as a jock strap

I had a great pair of lower decker knacker jackers on.

His lower decker knacker jackers chaffed his nuts.

by baabaam May 14, 2022