Details: This poster shows a fake Latin phrase: "O sibilisi ergo, fortibuses in ero. Nobili demis trux. Sewatis enim? Cowsendux." This can also be read "O see Billy, see 'er go. 40 buses in a row. No Billy, dem is trucks. See what's in 'em? Cows and ducks."
Dog Latin or mock-Latin refers to the creation of a phrase or jargon in imitation of Latin, often by directly translating English words (or those of other European languages) into Latin without conjugation or declension. Unlike the similarly-named language game Pig Latin (a form of spoken code popular among young children), Dog Latin is more of a humorous device for invoking scholarly seriousness. Often, correct Latin is mixed with English words for humorous effect or in an attempt to update Latin by providing words for modern items.
This poster is usually printed with a thin white edge border.