An act that is so immoral, unethical, mean-spirited, spiteful, petty, low blow, etc. that it seems more comparable to the classically over-the-top schemes of a cheesy villain in a children's cartoon than the actions of a real live person.
"Did you hear about those activists who beat up a homeless man and stole his puppy?"
"Wow, that is cartoonishly evil."
The act of drawing, writing, and completion a cartoon or comic strip at the work place. All in the danger of a write up or loss of a job. Comics are usually finished on the spot, and on found on company materials such as sticky-notes, memorandums, and the backs of reports.
An annoying-as-frack application used in the form of advertisement on numerous websites. A rather recent phenomenon, it advertises the basic feature of simplifying and altering the hues and pixels in an image to give humans/animals/objects a "cartoonish" look. It's actually really easy to do yourself via photoshop.
Bill: "Hey Frank, guess what?"
Frank: "What? Can't you see I'm playing Modern Warfare 2?"
Bill: "Yeah, but did you know you can use this free online program to make a cartoon picture of yourself? It's called "Cartoonize Yourself" and is so cool!"
Frank: "LOL I'm a graphic designer, I can do that in fifteen seconds on Photoshop."
Bill: "Wow, I suck. I'm gonna go eat my lawn now."