Generally played straight in The Order of the Stick. Races that get an Intelligence penalty frequently talk this way, and don't even get capital letters in print. This later gets a lampshade hung on it when we get to see a tribe of orcs in their private time, eager to learn better speech, because "gok look forward to first-person pronouns," among other aspirations.
In Gai Gin, the American protagonist's Japanese starts at the level of "No eat tomato," and improves to fluency during her prolonged stay in Japan. Her tortured, roundabout sentence construction is typical of new speakers. It fades and is replaced by comfortable if simple language, but her grammar remains off in varying ways and is prone to breaking down when she does. The effect is fantastic when compared to the competition. Granted, the competition is dominated by retarded kobolds.
In Narbonic, there is an awards convention interrupted by a giant robotic foot that speaks like this.
"MASTER ALSO RUN OUT OF FUNDS TO PROVIDE FOOT WITH ARTICLES OR PAST TENSES."
In The Law of Purple, we have Thud, who hails from the "primitive" Claw Jungles of Caligula. Subverted in that Thud and his tribe are all quite intelligent (not to mention far less racist than their supposedly "civilized" counterparts).
In White Dark Life Devin and Nessie both talk in incomplete sentences. Justified in that Devin has no understanding of speech and Nessie has to avoid talking too much or any man (or simple-minded woman) near her will go crazy.