The Rice University Neologisms Database

a car of poor quality or one that appears to be of poor quality on the outside My friend wanted a word to identify my other friend's car while simultaneously denigrating it, because it's an early 990s red Astro Van. Hence, he took the neologism "pos" and attached it to the front of the word automobile, then clipped the word "posautomobile" to "posmobile." Since the term “mobile” is technically an established word, it’s possible that pos was attached to the front of the word “mobile” rather than to the front of the word “automobile,” thus skipping any clipping that may have occurred. My friend who used the term posmobile was the same friend who invented the neologism "pos."