snatchzilla 

When you have encountered a human being who is mean, rude and has the personality of Godzilla.

"We would have invited your sister to dinner Bob, but she is so insulting to the staff, that we just couldn't allow 'Snatchzilla' to ruin the dinner party."

snatchzilla by oartifacts January 23, 2017

sketchzilla 

a sketched out person that is so sketch that its at the level of godzilla

the sketchiest type of people there are.

golly, Jamie is a sketchzilla.

sketchzilla by bazookabubbleyum February 12, 2010