knumpty 

An alternative spelling of numpty, the hard sound of the "k" hanging in there as numpty is often preceded by "fucking", but sometimes a swear word is inappropriate, so a silent swear is suggested by a silent "k".

Addressing BBC News 24 management, "You are a bunch of ... knumpties".
Head of BBC News, "You are a King Knumpty"; "How long does it take you knumpties to sort out the sound?"
Addressing journalists, "Recommended? To have an extra cheeseburger everyday! You people are complete and utter knumpties. The SACN report doesn't says that. Pricks."

knumpty by Harry Alffa November 28, 2011

Knumpty 

Like numpty but improved. The k isn’t silent it has to be pronounced. A knumpt is a very dumb person.

Kate: *breaks a flower vase*
Kuba: Kate you numpty
Kate: Actually I’m a knumpty

Kuba: What’s that
Kate: it’s a numpty but dumber
Kuba: so you really are a knumpty
Kate: :(

Knumpty by your friendly drugdealer June 30, 2019

krumpty 

A haggard bitch, busted as fuck.

Roy and Stephan said that bitch is krumpty

That krumpty bitch just farted

Did you just smell that krumpty chick, bro?

krumpty by Righteous rick & epic ericson February 14, 2014