sacernacker 

to nack a massive sac

i just sacernackered that guy

sacernacker by sack2331 January 1, 2024

slackernacker 

a person inclined to have a nack...for slacking. hence the name, slackernacker, a.k.a. nackerslacker

Tom, you are one heck of a slackernacker!!

slackernacker by Gishishopau September 8, 2008