Definitions by LargestPeen

Jacking 

When one acts as though they know everything on the subject when in reality they know absolutely nothing on the subject.

Wow, Josh is really jacking right now, he knows nothing about boats.

Jacking by LargestPeen June 3, 2018

big peen 

humongous male genitalia

That guy has a big peen

big peen by LargestPeen February 18, 2018