I have a question for those of you who dislike certain words like "prolly." Do you hate every instance of it or do you recognize that it can be used in jest? I would never use the word in a formal situation, but to friends and family with the right inflection, it's just a figure of speech. Like times one uses the word "ain't". When I am speaking with someone, I can generally tell by the speaker's inflection whether she knows the difference between proper and poor grammar.
Out fishing with my brother once, he stumbled around for the name of young turkeys. He conjured up "turklets" and it's stuck. Not a real word, but who cares? He's not going to use it in a research paper.
Language is such a fluid thing and humor can come in many forms.
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.