Adjective - A non-specific, positive modifier for any noun.
Synonyms - Great, Awesome, Excellent, Nice, Likeable,Cool.
Origin - Used to entertain one's self while waiting tables because people don't really listen their server. Always slips through the cracks of dialogue and goes unnoticed... at least until you've walked away.
"Is everything strobus over here, ladies? How about another round of waters with lemon?"